APA način citiranja

De Moraes, A. B. A., & Todorov, J. C. (1977). Signalled free-operant avoidance of shock by pigeons pecking a key.

Čikaški stil citiranja

De Moraes, A. Bento Alves, i João Claudio Todorov. Signalled Free-operant Avoidance of Shock By Pigeons Pecking a Key. 1977.

MLA način citiranja

De Moraes, A. Bento Alves, i João Claudio Todorov. Signalled Free-operant Avoidance of Shock By Pigeons Pecking a Key. 1977.