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Guide to the study of insects, and a treatise on those injurious and beneficial to crops

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Packard, A. S. (1869). Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm schools, and agriculturists. Salem, Naturalist's Book agency: etc. Retrieved from http://catalog.hathitrust.org/Record/009470264