Bennett, H. H. (1947). Elements of soil conservation. McGraw-Hill.
Cita Chicago Style (17a ed.)Bennett, Hugh Hammond. Elements of Soil Conservation. New York: McGraw-Hill, 1947.
Cita MLA (8a ed.)Bennett, Hugh Hammond. Elements of Soil Conservation. McGraw-Hill, 1947.
Precaución: Estas citas no son 100% exactas.