@article {39373,
	title = {Interior Canada subpopulation of trumpeter swans - status 1992. In : proceedings and papers of the Fourteenth Trumpeter Swan society Conference - an asset or liability?, D. C. Compton, M. H. Linck, H. K. Nelson and R. J. Balcomb, eds.},
	year = {1994},
	institution = {The Trumpeter Swan Society},
	address = {Maple Plain, MN},
	author = {Beyersbergen, G. W. and Shandruk, L. J.}
}
