SANCHES, P. A. (1976). Properties and management of soil in the tropics. John Wiley And Sons.
Chicago-referens (17:e uppl.)SANCHES, Pedro A. Properties and Management of Soil in the Tropics. New York: John Wiley And Sons, 1976.
MLA-referens (9:e uppl.)SANCHES, Pedro A. Properties and Management of Soil in the Tropics. John Wiley And Sons, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.