APA aipamena

Shull, R. L., & Pliskoff, S. S. (1971). Changeover behavior under pairs of fixed-ratio and variable-ratio schedules of reinforcement.

Chicago Style aipamena

Shull, Richard L., and Stanley S. Pliskoff. Changeover Behavior Under Pairs of Fixed-ratio and Variable-ratio Schedules of Reinforcement. 1971.

MLA aipamena

Shull, Richard L., and Stanley S. Pliskoff. Changeover Behavior Under Pairs of Fixed-ratio and Variable-ratio Schedules of Reinforcement. 1971.