Pynciau a Argymhellir O fewn eich chwiliad
Pynciau a Argymhellir O fewn eich chwiliad
8
Groundwater
8
Water-supply
6
Analysis
6
Water
6
Wells
2
History
1
Description and travel
1
Geological surveys
1
Travel
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1gan White, Walter N. (Walter Noy)
Cyhoeddwyd 1931Washington, D.C. : U.S. G.P.O., 1931.ii, 22 p. : map ; 23 cm. -
2gan Cumley, J. C.
Cyhoeddwyd 1938Austin, Tex. : Texas State Board of Water Engineers, [1938]40 leaves : maps ; 28 cm. -
3Cyhoeddwyd 1937Austin, Tex. : Texas State Board of Water Engineers, [1937]58 leaves : map ; 28 cm.
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4gan White, Walter N. (Walter Noy)
Cyhoeddwyd 1935[Austin? Tex.] : Texas State Board of Water Engineers, 1935.28 leaves : maps ; 28 cm. -
5Cyhoeddwyd 1936Austin, Tex. : Texas State Board of Water Engineers, [1936]60 leaves : maps ; 28 cm.
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6Cyhoeddwyd 1937Austin, Tex. : Texas State Board of Water Engineers, [1937]92 leaves : map ; 28 cm.
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7Cyhoeddwyd 1943[Austin, Tex.] : Texas State Board of Water Engineers, [1943]37 leaves : map ; 28 cm.
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8Cyhoeddwyd 1936Austin, Tex. : Texas State Board of Water Engineers, [1936]82 leaves : maps ; 28 cm.
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9
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10Cyhoeddwyd 1949Washington, D.C. : National Archives, 1949.16 microfilm reels ; 35 mm.
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11Cyhoeddwyd 1949Washington [D.C.] : National Archives, 1949.29 microfilm reels ; 35 mm.
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12Cyhoeddwyd 1964Washington : National Archives and Records Service, General Services Administration, 1964.118 microfilm reels ; 35 mm. + 1 guide (8 p.)