Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

Tinbergen, Niko. The Animal in Its World: Explorations of an Ethologist, 1932-1972. Harvard University Press, 1972.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.