Drickamer, L. C., Vessey, S. H., & Jakob, E. M. (2002). Animal behavior: Mechanisms, ecology, evolution (5th ed.). McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Drickamer, Lee C., Stephen H. Vessey, agus Elizabeth M. Jakob. Animal Behavior: Mechanisms, Ecology, Evolution. 5th ed. New York, New York: McGraw Hill, 2002.
Lua MLA (9ú heag.)Drickamer, Lee C., et al. Animal Behavior: Mechanisms, Ecology, Evolution. 5th ed. McGraw Hill, 2002.
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