(1955). The yearbook of agriculture 1955 - Water. Washington: U.S.Department of Agriculture.
Trích dẫn kiểu ChicagoThe Yearbook of Agriculture 1955 - Water. Washington: U.S.Department of Agriculture, 1955.
MLA citiranjeThe Yearbook of Agriculture 1955 - Water. Washington: U.S.Department of Agriculture, 1955.
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