Borror, Donald Joyce ,1907- DeLong, Dwight Moore , 1892- An introduction to the study of insects Donald J. Borror, Dwight M. De Long, Charles A. Triplehorn - 5th ed. - Saunders College Pub. Philadelphia 1981 c1981 - x, 827 p. :ill. ;25 cm. Includes bibliographies and index. ISBN: 0030435315 Subjects--Topical Terms: Entomology.Insects -- United States.--QL LC Class. No.: QL463.B69 1981