Cita APA (7a ed.)

Krebs, C. J. (1972). Ecology.: The experimental analysis of distribution and abundance (1st edition.). Harper & Row.

Cita Chicago Style (17a ed.)

Krebs, Charles J. Ecology.: The Experimental Analysis of Distribution and Abundance. 1st edition. New York: Harper & Row, 1972.

Cita MLA (8a ed.)

Krebs, Charles J. Ecology.: The Experimental Analysis of Distribution and Abundance. 1st edition. Harper & Row, 1972.