APA aipamena

F. Gary Cunningham ...[et al.]. (2001). Williams Obstetrics. McGraw-Hill.

Chicago Style aipamena

F. Gary Cunningham ...[et al.]. Williams Obstetrics. McGraw-Hill, 2001.

MLA aipamena

F. Gary Cunningham ...[et al.]. Williams Obstetrics. McGraw-Hill, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.