Παραπομπή APA

Pitts, R. C., & Malagodi, E. F. (1991). Preference for less frequent shock under fixed-interval schedules of electric-shock presentation.

Παραπομπή Chicago Style

Pitts, R C., και E F. Malagodi. Preference for Less Frequent Shock Under Fixed-interval Schedules of Electric-shock Presentation. 1991.

Παραπομπή MLA

Pitts, R C., και E F. Malagodi. Preference for Less Frequent Shock Under Fixed-interval Schedules of Electric-shock Presentation. 1991.

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