Chủ đề được đề xuất trong tìm kiếm của bạn.
Chủ đề được đề xuất trong tìm kiếm của bạn.
581
Agriculture
158
Forests and forestry
147
Fisheries
138
Agricultural extension work
118
Research
96
Home economics extension work
69
Livestock
48
Statistics
44
Appropriations and expenditures
42
Economic aspects
36
Veterinary medicine
35
Fruit-culture
30
Horticulture
25
Food crops
20
Politics and government
19
Harbors
18
Agricultural estimating and reporting
18
Field crops
17
Farm management
16
Budget
15
Plant diseases
15
Soil conservation
14
Fertilizers
14
Rice
13
Agricultural experiment stations
13
Fish-culture
13
Fishes
13
Irrigation
12
Experimentation
11
Agricultural pests
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1Được phát hành 1938### CRL customization ### ?> ### Add publisher and desc details ### ?>São Paulo, Brasil : Secretaria da Agricultura, 1938-lấy văn bản
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2Được phát hành 1916### CRL customization ### ?> ### Add publisher and desc details ### ?>Des Moines : R. Henderson, State printer, 1915-[1916]2 v. : ill. ; 22 cm.
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3Columbus, O., College of Agriculture, Ohio State University.v. illus. (incl. ports.) diagrs. 27-28 cm.
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4East Lansing, Mi.v. ill.
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5Được phát hành 1925### CRL customization ### ?> ### Add publisher and desc details ### ?>[Ames, Iowa] : Iowa Agricultural Experiment Station, Animal Husbandry Section, 1925-v. ; 22 cm.
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6Được phát hành 1925### CRL customization ### ?> ### Add publisher and desc details ### ?>Des Moines : State of Iowa, [1925-1959]35 v. : ill. ; 23 cm.
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7Được phát hành 1921### CRL customization ### ?> ### Add publisher and desc details ### ?>Ames, Iowa : The Dept., 1921.25 no. : ill. ; 22 cm.
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8[Saint Paul, Minn.] : The College.v. : ill. ; 28 cm.
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9Được phát hành 1925### CRL customization ### ?> ### Add publisher and desc details ### ?>Honolulu : Published by the University of Hawaii, 1925-1930.7 v. : ill. ; 23-28 cm.
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10Được phát hành 1992### CRL customization ### ?> ### Add publisher and desc details ### ?>Ames, Iowa : Iowa State University of Science and Technology, [-1992]v. ; 28 cm.
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11Được phát hành 1887### CRL customization ### ?> ### Add publisher and desc details ### ?>Gainesville : The Station, 1887-1896.v. : ill. ; 23 cm.
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12[S.l. : s.n.]v. : ill. ; 23 cm.
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13Được phát hành 1936### CRL customization ### ?> ### Add publisher and desc details ### ?>Ames, Ia. : Agricultural Experiment Station, 1936-1957.19 v. : ill. ; 28 cm.
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14Được phát hành 1940### CRL customization ### ?> ### Add publisher and desc details ### ?>Bozeman, Mont. : Montana State College, Agricultural Experiment Station, 1940-41.7 v. ; 28 cm.
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15Ames, Agricultural Extension Service, Iowa State College.15 v. maps, tables. 28 cm.
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16Được phát hành 1928### CRL customization ### ?> ### Add publisher and desc details ### ?>Escanaba, Mich. : The Fair, 1928-1953.23 v. : ill. ; 20-22 cm.
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17Koḷamba : Laṃkāṇḍuvē Mudraṇā Depārtamentuva,v. ; 25 cm.
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18Colombo.
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19New Delhi, Editorial Committee, Indian Journal of Fisheries for the Ministry of Food and Agriculture.v. ill. 25 cm.
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20[Jakarta] : Sekretariat, Direktorat Jenderal Bina Sosial,v.