Packard, A. S. 1. (1869). Guide to the study of insects: And a treastise on those injurious and beneficial to crops: for the use of colleges, farm schools, and agriculturists. Salem: Naturalist's Book agency.
Chicago Style CitationPackard, A. S. 1839-1905. Guide to the Study of Insects: And a Treastise On Those Injurious and Beneficial to Crops: For the Use of Colleges, Farm Schools, and Agriculturists. Salem: Naturalist's Book agency, 1869.
MLA CitationPackard, A. S. 1839-1905. Guide to the Study of Insects: And a Treastise On Those Injurious and Beneficial to Crops: For the Use of Colleges, Farm Schools, and Agriculturists. Salem: Naturalist's Book agency, 1869.
Warning: These citations may not always be 100% accurate.