Παραπομπή APA

Tinbergen, N. (1970). Signals for survival. Clarenton Press.

Παραπομπή Chicago Style

Tinbergen, Niko. Signals for Survival. Osford: Clarenton Press, 1970.

Παραπομπή MLA

Tinbergen, Niko. Signals for Survival. Clarenton Press, 1970.