Alcock, J. (1989). Animal Behavior: An Evolutionary Approach (4th ed.). Sinauer Associates.
Chicago-viite (17. p.)Alcock, John. Animal Behavior: An Evolutionary Approach. 4th ed. USA: Sinauer Associates, 1989.
MLA-viite (9. p.)Alcock, John. Animal Behavior: An Evolutionary Approach. 4th ed. Sinauer Associates, 1989.
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