Bennett, H. H. (1939). Soil conservation. McGraw-Hill.
Chicagoスタイル(17版)引用形式Bennett, Hugh Hammond. Soil Conservation. New York: McGraw-Hill, 1939.
MLA(9版)引用形式Bennett, Hugh Hammond. Soil Conservation. McGraw-Hill, 1939.
警告: この引用は必ずしも正確ではありません.
Bennett, H. H. (1939). Soil conservation. McGraw-Hill.
Chicagoスタイル(17版)引用形式Bennett, Hugh Hammond. Soil Conservation. New York: McGraw-Hill, 1939.
MLA(9版)引用形式Bennett, Hugh Hammond. Soil Conservation. McGraw-Hill, 1939.