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  1. By: Hansen, C. J. (Carl Joseph), - Eggers, Elmer Rolf,
    Publication info: Berkeley, Calif, College of Agriculture, University of California, 1936
    Holding Institution: University of California, Davis Libraries
  2. By: Hansen, C. J. (Carl Joseph), - Hartmann, Hudson Thomas, - University of California (System). Division of Agricultural Sciences.
    Edition: Rev.
    Publication info: [Berkeley, Calif.], Division of Agricultural Sciences, University of California, 1966
    Holding Institution: University of California, Davis Libraries
  3. By: Hansen, C. J. (Carl Joseph), - Hartmann, Hudson Thomas,
    Publication info: [Berkeley, Calif.], Division of Agricultural Sciences, University of California, [1958]
    Holding Institution: University of California, Davis Libraries
  4. By: Sechrist, E. L., - Hansen, C. J. (Carl Joseph), - United States. Bureau of Entomology.
    Publication info: [Washington, D.C.?], Bureau of Entomology, United States Department of Agriculture, 1932
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library