@article {29715,
	title = {Population surveys of ungulates. Chapter 4. In : R. D. Jakimchul, ed. Surveys of mammals along proposed gas pipeline in Alberta},
	volume = {Arctic Gas Biol. Report Series Vol. 25},
	year = {1974},
	author = {Pendergast, B. and Horstman, L. and Dorey, L. R.}
}
