Gaya APA
PITKIN, Roy M. (1977).
The Year Book of Obstetrics and Gynecology 1977 .
Chicago:
Year book medical publishers.
Gaya Chicago
PITKIN, Roy M.
The Year Book of Obstetrics and Gynecology 1977.
Chicago:
Year book medical publishers,
1977.
Buku Text.
Gaya MLA
PITKIN, Roy M.
The Year Book of Obstetrics and Gynecology 1977.
Chicago:
Year book medical publishers,
1977.
Buku Text.
Gaya Turabian
PITKIN, Roy M.
The Year Book of Obstetrics and Gynecology 1977.
Chicago:
Year book medical publishers,
1977.
Buku Text.