Canadian Forest Service Publications
Ten-year growth response of a 25 year old and 55 year old Douglas-fir stand to thinning and urea fertilization. 1985. Lee, Y.J.; Barclay, H.J. Agriculture Canada, Ministry of State for Forestry, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-260. 14 p.
Available from: Pacific Forestry Centre
Catalog ID: 2520