APA Format
49163. (1991). Babies: Understanding conception,birth dan the pirs years. London : Univ Collegen hospital
MLA Format
49163. Babies: Understanding conception,birth dan the pirs years. London : Univ Collegen hospital, 1991
Chicago Format
49163. Babies: Understanding conception,birth dan the pirs years. London : Univ Collegen hospital, 1991
Australian/Harvard Format
49163. 1991. Babies: Understanding conception,birth dan the pirs years. Univ Collegen hospital London