Παραπομπή APA

K Schmidt Koenig & W T Keiton. (1978). Animal migration ,navigation and homing. Berlin.

Παραπομπή Chicago Style

K Schmidt Koenig και W T Keiton. Animal Migration ,navigation and Homing. Berlin, 1978.

Παραπομπή MLA

K Schmidt Koenig και W T Keiton. Animal Migration ,navigation and Homing. Berlin, 1978.