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By "Ellis, Robert Oliver,"
Apparatus and procedure for extracting corn rootworm eggs from soil / John T. Shaw, Robert O. Ellis, W. H. Luckmann.
By: Shaw, John Turrell. - Ellis, Robert Oliver, - Luckmann, William Henry,
Publication info: Urbana :State of Illinois, Dept. of Registration and Education, Natural History Survey Division,1976.
Contributed by: University of Illinois Urbana Champaign