@article {30717,
	title = {An assessment of the soil acidity problem in Alberta and northeastern British Columbia. In : Proceedings of 1977 Annual Alberta Soil Science Workshop on Soil Conservation, Reclamation and Research, February 1 - 2, 1977, Red Deer, Alberta},
	year = {1977},
	pages = {179-189},
	author = {Penney, D. C. and Nyborg, M. and Hoyt, P. B. and Rice, W. A. and Siemens, B. and Laverty, D. H.}
}
