Dyfyniad APA

Marsh, W. M., & Grossa, J. (1996). Environmental geography: Science, land use, and earth systems. Wiley.

Dyfyniad Arddull Chicago

Marsh, William M., and John Grossa. Environmental Geography: Science, Land Use, and Earth Systems. New York: Wiley, 1996.

Dyfyniad MLA

Marsh, William M., and John Grossa. Environmental Geography: Science, Land Use, and Earth Systems. Wiley, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.