Gaya APA

Marsh, W, M., Grossa, J, M. (1996). Enviromental Geography science, Land Use, and Earth systems . New York: John Wiley and Sons, Inc..

Gaya MLA

Marsh, Wiliam, M.., Grossa, John, M.. "Enviromental Geography science, Land Use, and Earth systems". New York: John Wiley and Sons, Inc., 1996. Text.