@book{38690,
	author = {Tinbergen, Niko,},
	title = {An objectivistic Study of the innate behaviour of animals /},
	publisher = {Brill,},
	year = {1942.},
	series = {Biology - Book Archive pre-2000},
	address = {Leiden ;},
	url = {http://dx.doi.org/10.1163/9789004591035}
}