Cita APA (7a ed.)

Krebs, C. J. (2009). Ecology: The experimental analysis of distribution and abundance (6a ed.). Pearson : Benjamin-Cummings.

Cita Chicago Style (17a ed.)

Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. 6a ed. San Francisco: Pearson : Benjamin-Cummings, 2009.

Cita MLA (8a ed.)

Krebs, Charles J. Ecology: The Experimental Analysis of Distribution and Abundance. 6a ed. Pearson : Benjamin-Cummings, 2009.