APA
WHO, . (1997). Intrauterine devices : technical and managerial guidelines for services. auth., Geneva: .
Chicago
WHO, . 1997. Intrauterine devices : technical and managerial guidelines for services. auth., Geneva: .
Harvard
WHO, . (1997). Intrauterine devices : technical and managerial guidelines for services. auth., Geneva: .
MLA
WHO, . Intrauterine devices : technical and managerial guidelines for services. auth., Geneva: . 1997.