Robert D. Gordon,
1999.
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Bob Gordon is a specialist in the
Coccinellidae and Aphodiinae, especially of North America. He is now
retired from his position with the Systematic Entomology Laboratory
of the U. S. Department of Agriculture (housed in the U. S. National
Collection in the Smithsonian Institution) and lives in North
Dakota. He is continuing his revisionary studies of the
Aphodius of North
America. |
