@article {32153,
	title = {Progress report on the morphometric analysis of extant forms of Bison with emphasis on the systematic status of surviving wood bison},
	volume = {Unpublished report BNJP-293},
	year = {1979},
	pages = {2},
	institution = {National Museum of Canada},
	author = {Zyll de Jong, C. G. van}
}
