Columbia subject headings:
Animal behavior--History.
Ethnology--History.
Psychology, Comparative.
Tinbergen, Niko, 1907-1988.
Harvard subject headings:
Animal behavior--History.
Animal behavior--Research--Netherlands.
Ethologists--Netherlands--Biography.
Psychology, Comparative
Tinbergen, Niko, 1907-1988
Princeton subject headings:
Animal behavior--Research--Netherlands.
Ethnologists--Netherlands--Biography.
Tinbergen, Niko, 1907-1988.