Hey, G. L. The control of pests and diseases : in agricultural and horticultural crops / G. L. Hey and K. Marshall. - London : Vinton, 1958. - 172 p. : ill. ; 19 cm. - Agricultural and horticultural students series ; . Includes index. 337 337 Subjects--Topical Terms: Pests.Beneficial insects. Dewey Class. No.: 632.9 / H512c