Dyfyniad APA

Schlesinger, W. H., & Bernhardt, E. S. (2012). Biogeochemistry: An analysis of global change (3rd edition.). Elsevier/Academic Press.

Dyfyniad Arddull Chicago

Schlesinger, William H., and Emily S. Bernhardt. Biogeochemistry: An Analysis of Global Change. 3rd edition. New York: Elsevier/Academic Press, 2012.

Dyfyniad MLA

Schlesinger, William H., and Emily S. Bernhardt. Biogeochemistry: An Analysis of Global Change. 3rd edition. Elsevier/Academic Press, 2012.

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