Borror, D. J. An introduction to the study of insects/ Donald J. Borror; Dwight M. De Long and Charles A. Triplehorn. - 5th. - Philadelphia: Saunders College, 1981. - x, 827 p.: ill.; 25 cm. Includes bibliographies and index. ISBN: 0030435315 Subjects--Topical Terms: Entomology.Insects LC Class. No.: DUCE QL463.B69 /