Soybean spiders : species composition, population densities and vertical distribution LeSar, Charles D. creator Unzicker, John D. contributor text book Urbana State of Illinois, Dept. of Registration and Education, Illinois Natural History Survey Division 1978 1978
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ENG Cover title. Diseases and pests Illinois Soybean Spiders Biological notes, no.107 https://www.biodiversitylibrary.org/bibliography/200920 0073-490X https://www.biodiversitylibrary.org/bibliography/15185 6027756 10.5962/bhl.title.15185 SPI