APA (7th ed.) Citation

Tinbergen, N. (1972). The animal in its world: Explorations of an ethologist ; 1932 - 1972. Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Tinbergen, Nikolaas. The Animal in Its World: Explorations of an Ethologist ; 1932 - 1972. Cambridge, Mass: Harvard Univ. Press, 1972.

MLA (9th ed.) Citation

Tinbergen, Nikolaas. The Animal in Its World: Explorations of an Ethologist ; 1932 - 1972. Harvard Univ. Press, 1972.