APA aipamena

Smith, R. L., & Smith, T. M. (2000). Elements of ecology (4th ed.). Benjamin Cummings.

Chicago Style aipamena

Smith, Robert Leo, and Thomas M. Smith. Elements of Ecology. 4th ed. San Francisco: Benjamin Cummings, 2000.

MLA aipamena

Smith, Robert Leo, and Thomas M. Smith. Elements of Ecology. 4th ed. Benjamin Cummings, 2000.