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  1. A disease of pines caused by Cronartium pyriforme / by George G. Hedgcock and William H. Long.
    By: Hedgcock, George G. - Long, W. H.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1915.
    Contributed by: University of California Libraries (archive.org)
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  2. A preliminary report on the occurrence of western red-rot in Pinus ponderosa /
    By: Long, W. H.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1917.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  3. The western yellow pine mistletoe : effect on growth and suggestions for control /
    By: Korstian, Clarence F. - Long, W. H.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1922.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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