Gypsy moth handbook :
selected parasites and hyperparasites of the gypsy moth, with keys to adults and immatures /
by Edward E. Simons, Richard C. Reardon, and Mark Ticehurst.

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Item Link Original Source
Full view   University of Virginia
Full view   University of California
Full view   no.540(1979) University of Illinois at Urbana-Champaign