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Geology data standards for ecological unit inventories for the Pacific Southwest Region
Biological control of leafy spurge project manual
Status of the Porsild's Bryum (Bryum porsildii) in Alberta
Report : scope of work for the initial assessment of aquatic ecosystem health in Alberta
Chemical investigations of the tobacco plant IV The effect of the curing process on the organic acids of tobacco leaves
Agriculture at the University of Illinois
Ingalik contact ecology : an ethnohistory of the lower-middle Yukon
Square deal seeds for 1940
Bats of the Antillean Island of Grenada : a new zoogeographic perspective
USDA Forest Service environmental analysis : field testing of candidate insecticides for control of the pine butterfly