Nortman, Dorothy L. Voluntary sterilization its demographic impact in relation to other contraceptive methods Dorothy L. Nortman - Honolulu East-West Center 1980 - 23 p. : ill. ; 23 cm. - Papers of the East-West Population Institute no. 65 . p. 22-23 Subjects--Topical Terms: Sterilization (Birth control).Demography.