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  1. By: Glock, Waldo S. (Waldo Sumner), - Gaines, Edward M. (Edward McCulloch), - Agerter, Sharlene R.
    Publication info: Fort Collins, Colo. :Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture,1964.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library