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
- publisher: Salem, Naturalist's agency; [etc., etc.]
- creator: Packard, A. S. (Alpheus Spring), 1839-1905
- Keyword: Insects. Insects, Injurious and beneficial.
- years: 1872.
- pages: iv, [iii]-viii, 715 p.
- class: QL463
- download: pdf file
