Παραπομπή APA

Beck, C. W., & Promislow, D. E. L. (2007). Evolution of Female Preference for Younger Males. Public Library of Science.

Παραπομπή Chicago Style

Beck, Christopher W., και Daniel E. L. Promislow. Evolution of Female Preference for Younger Males. Public Library of Science, 2007.

Παραπομπή MLA

Beck, Christopher W., και Daniel E. L. Promislow. Evolution of Female Preference for Younger Males. Public Library of Science, 2007.

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