Packard, A. S. 1. (1876). 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 (5th ed.). New York, Boston: H. Holt and company; Estes & Lauriat.
Chicago Style CitationPackard, A. S. 1839-1905. 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. 5th ed. New York, Boston: H. Holt and company; Estes & Lauriat, 1876.
MLA CitationPackard, A. S. 1839-1905. 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. 5th ed. New York, Boston: H. Holt and company; Estes & Lauriat, 1876.