University of Illinois Urbana-Champaign

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Showing 121–150 of 431 items
Thumbnail for Illinois pest control handbook
Illinois pest control handbook
University of Illinois at Urbana-Champaign. College of Agriculture Cooperative Extension Service

Thumbnail for The Plant Lice, or Aphiidae, of Illinois
The Plant Lice, or Aphiidae, of Illinois
Hottes, Frederick C.; Frison, Theodore Henry