@article {38165,
	title = {Tillage of forest haul roads in west-central Alberta. In : 28th Annual Alberta Soil Science Workshop Proceedings, "Sustainable agriculture : a soil science perspective", February 19-21, 1991, Lethbridge, Alberta},
	year = {1991},
	pages = {241-245},
	institution = {University of Alberta, Faculty of Extension},
	author = {Nelson, P. A. and McAndrew, D. W.}
}
