Alcock, J., & Sherman, P. W. (1998). Exploring animal behaviour (2nd ed.). Sinaver Associates Inc..
Chicago Style aipamenaAlcock, John, and Paul W. Sherman. Exploring Animal Behaviour. 2nd ed. Massachussets: Sinaver Associates Inc., 1998.
MLA aipamenaAlcock, John, and Paul W. Sherman. Exploring Animal Behaviour. 2nd ed. Sinaver Associates Inc., 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.