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16
Agriculture
11
Agricultural extension work
6
Agricultural education
6
Home economics extension work
5
Farmers
1
ASIA
1
Corrections
1
Dairying
1
ECONOMIC COOPERATION
1
Economic assistance
1
Economic conditions
1
Economic history
1
Economic policy
1
Education, Higher
1
Exhibitions
1
Factory and trade waste
1
Industrial relations
1
Labor
1
Labor movement
1
OCEANIA
1
Recycling (Waste, etc.)
1
Rural youth
1
Science
1
Social service
1
Technical education
1
Technology
1
Working class
1
Youth
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1New Delhi, Manager of Publications Civil Lines.v. 24 cm.
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2出版 1916[Texas] : Agricultural and Mechanical College of Texas, 1916.1 v. ; 23 cm.
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3出版 1907East Lansing, Mich. : Michigan State Agricultural College, -1907.v. : ill. ; 23 cm.
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4出版 1908East Lansing, Mich. : Michigan Agricultural College, 1908-1913.6 v. : ill. ; 23 cm.
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5出版 1921East Lansing, Mich. : Michigan Agricultural College, 1921-1981.v. : ill. ; 23 cm.
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6出版 1914East Lansing, Mich. : Agricultural College, 1914.1 v. : ill. ; 23 cm.
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7出版 1898Iowa City : State Historical Society of Iowa, 1898-1916.v. ; 23 cm.
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8出版 1917College Station, Tex. : Agricultural and Mechanical College of Texas, 1917-v. ; 23 cm.
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9出版 1918East Lansing, Mich. : Michigan Agricultural College, 1918-1920.3 v. : ill. ; 23 cm.Also issued in print.
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10出版 1908East Lansing, Mich. : Michigan Agricultural College, 1908-1913.6 v. : ill. ; 23 cm.
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11出版 1911Austin, Tex. : Texas Dept. of Agriculture, 1911.1 v. ; 23 cm.
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12出版 1907East Lansing, Mich. : Michigan State Agricultural College, -1907.v. : ill. ; 23 cm.Also issued in print.
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13Moskva : ︠T︡Sentr,v. : ill.
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14出版 1921East Lansing, Mich. : Michigan Agricultural College, 1921-1981.v. : ill. ; 23 cm.
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15
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16出版 1912Austin, Tex. : Texas Dept. of Agriculture, 1912-1917.6 v. : ill. ; 23 cm.
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17
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18出版 1914East Lansing, Mich. : Agricultural College, 1914.1 v. : ill. ; 23 cm.
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19
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20出版 1917College Station, Tex. : Agricultural and Mechanical College of Texas, 1917-v. ; 23 cm.