APA način citiranja

Wilkie, D. M. (1972). Variable-time reinforcement in multiple and concurrent schedules.

Čikaški stil citiranja

Wilkie, Donald M. Variable-time Reinforcement in Multiple and Concurrent Schedules. 1972.

MLA način citiranja

Wilkie, Donald M. Variable-time Reinforcement in Multiple and Concurrent Schedules. 1972.

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