Cita APA

Beck, S. D. (1980). Insect photoperiodism (2.).

Chicago Edition Citation

Beck, Stanley D. Insect Photoperiodism. 2. Academic Press, New York, 1980.

Cita MLA

Beck, Stanley D. Insect Photoperiodism. 2. 1980.

Atenció: Aquestes cites poden no estar 100% correctes.