Dyfyniad APA

Schlesinger, W. H., & Bernhardt, E. S. (2013). Biogeochemistry: An analysis of global change (3rd ed.). Elsevier.

Dyfyniad Arddull Chicago

Schlesinger, William H., and Emily S. Bernhardt. Biogeochemistry: An Analysis of Global Change. 3rd ed. Amsterdam: Elsevier, 2013.

Dyfyniad MLA

Schlesinger, William H., and Emily S. Bernhardt. Biogeochemistry: An Analysis of Global Change. 3rd ed. Elsevier, 2013.

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