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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Haller, M. H. (Mark Hughlin),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1941
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Haller, M. H. (Mark Hughlin), - Magness, J. R. (John Robert),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1944
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Magness, J. R. (John Robert), - Diehl, H. C. (Helmut Charles), - Haller, M. H. (Mark Hughlin),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Haller, M. H. (Mark Hughlin), - Lutz, J. M. (Jacob Martin), - Mallison, E. D. (Earl Dewey),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1941
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: Haller, M. H. (Mark Hughlin), - United States. Bureau of Plant Industry, Soils, and Agricultural Engineering.
    Publication info: Beltsville, Md, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering, 1947
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library