APA (7th ed.) Citation

Smith, T. M., & Smith, R. L. (2015). Elements of ecology (Ninth edition, Global edition.). Pearson.

Chicago Style (17th ed.) Citation

Smith, Thomas M., and Robert Leo Smith. Elements of Ecology. Ninth edition, Global edition. Boston: Pearson, 2015.

MLA (9th ed.) Citation

Smith, Thomas M., and Robert Leo Smith. Elements of Ecology. Ninth edition, Global edition. Pearson, 2015.