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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Heck, Walter Webb, - Dunning, John A., - Philbeck, Robert B., - North Carolina Agricultural Experiment Station. - United States. Agricultural Research Service. Southern Region.
    Publication info: New Orleans, La, U.S. Dept. of Agriculture, Agricultural Research Service, Southern Region, 1978
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library