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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Harding, Paul L. (Paul Lewis), - Soule, Mortimer J. - Sunday, Milliard B. - United States. Agricultural Marketing Service. Biological Sciences Branch.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Agricultural Marketing Service, Biological Sciences Branch, [1954?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library