Gustafson, A. F. (1941). Soils and soil management. McGraw-Hill.
Cita Chicago Style (17a ed.)Gustafson, A. F. Soils and Soil Management. New York: McGraw-Hill, 1941.
Cita MLA (8a ed.)Gustafson, A. F. Soils and Soil Management. McGraw-Hill, 1941.
Precaución: Estas citas no son 100% exactas.