Packard, A. (1880). Guide to insects: And a treatise on those injurious and beneficial to crops for the use of colleges, farm schools and agriculturist (7th edition.). Henry Holt and Company.
Chicago-Zitierstil (17. Ausg.)Packard, A.S. Guide to Insects: And a Treatise on Those Injurious and Beneficial to Crops for the Use of Colleges, Farm Schools and Agriculturist. 7th edition. New Delhi: Henry Holt and Company, 1880.
MLA-Zitierstil (9. Ausg.)Packard, A.S. Guide to Insects: And a Treatise on Those Injurious and Beneficial to Crops for the Use of Colleges, Farm Schools and Agriculturist. 7th edition. Henry Holt and Company, 1880.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.