Παραπομπή APA

Gregory, R. L. (1974). Concepts and mechanisms of perception. Duckworth.

Παραπομπή Chicago Style

Gregory, R. L. Concepts and Mechanisms of Perception. London: Duckworth, 1974.

Παραπομπή MLA

Gregory, R. L. Concepts and Mechanisms of Perception. Duckworth, 1974.