Παραπομπή σε μορφή APA (7η εκδ.)

Beck, S. D. (1963). Animal photoperiodism: Relationship of daylength to animal growth, development and behavior. Holt, Rinehart and Winston, Inc.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beck, Stanley D. Animal Photoperiodism: Relationship of Daylength to Animal Growth, Development and Behavior. New York: Holt, Rinehart and Winston, Inc, 1963.

Παραπομπή σε μορφή MLA (8th εκδ.)

Beck, Stanley D. Animal Photoperiodism: Relationship of Daylength to Animal Growth, Development and Behavior. Holt, Rinehart and Winston, Inc, 1963.