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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Haeffner, Arden D.
    Publication info: Fort Collins, Colo, Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1971
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Atmospheric temperature  Colorado  Forest meteorology  Measurement  Precipitation (Meteorology)
  2. By: National Arboretum (U.S.) - American Horticultural Society. - United States. Agricultural Research Service.
    Edition: Rev. 1965.
    Publication info: Washington, D.C, Agricultural Research Service, [1965]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Atmospheric temperature  Canada  Climate  Hardiness  Maps  Plants  United States