Lua APA (7ú heag.)

KREBS, J. (1981). An Introduction To Behavioural Ecology. Blackwell Scientific Publicati.

Lua i Stíl Chicago (17ú heag.)

KREBS, J.R. An Introduction To Behavioural Ecology. Blackwell Scientific Publicati, 1981.

Lua MLA (8ú heag.)

KREBS, J.R. An Introduction To Behavioural Ecology. Blackwell Scientific Publicati, 1981.

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