Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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