Edwards, C. A. Persistent pesticides in the environment. Author: Clive A. Edwards. - Cleveland, Ohio CRC Press [1970] - 78 p. illus. 28 cm. - CRC monoscience series . At head of title: CRC. Bibliography: p. 66-78. LCCN: 79141881 //r903 Subjects--Topical Terms: Pesticides--Environmental aspects. LC Class. No.: QH545.P4 / E3 1970b Dewey Class. No.: 574.5