Chu, H.F. The immature insects : an illustrated key for identifying the orders and families of many of the immature insects with suggestions for collectiong, rearing and studying them (Book) - Dubuque, Iowa W.M.C. Brown 1949 - 234 p. 22 cm. Subjects--Topical Terms: Insects--Development Universal Decimal Class. No.: 595.7 : 591.35 CHU / 11654