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  1. By: Harrington, Michael G. - Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
    Publication info: Fort Collins, Colo, U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, [1987]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Allelopathic agents  Forest ecology  Growth  Ponderosa pine  Quercus gambellie  Southwestern States