APA

Tinbergen N., . (1989). <The >study of instinct. Oxford: Claredon Press.

Chicago

Tinbergen Nikolaas, . 1989. <The >study of instinct. Oxford: Claredon Press.

Harvard

Tinbergen N., . (1989). <The >study of instinct. Oxford: Claredon Press.

MLA

Tinbergen Nikolaas, . <The >study of instinct. Oxford: Claredon Press. 1989.