@article {29673,
	title = {Landscape classification and plant successional trends : Peace-Athabasca Delta},
	volume = {Report Series No. 30},
	year = {1974},
	pages = {34},
	institution = {Canadian Wildlife Service},
	author = {Dirschl, H. J. and Dabbs, D. L. and Gentle, G. C.}
}
