@article {42323,
	title = {2000 survey of trumpeter swans in Alberta, Saskatchewan, Manitoba, and the Northwest Territories},
	volume = {Unpublished report},
	year = {2000},
	pages = {14},
	institution = {Canadian Wildlife Service, Western and Northern Region},
	address = {Edmonton, AB},
	author = {Norton, M. and Beyersbergen, G. W.}
}
