Gaya APA
Cunningham, F. Gary...[et.al]. (1993).
Williams obstetrics (19 th. Ed).
Singapoore:
Prentise HAII International.
Gaya Chicago
Cunningham, F. Gary...[et.al].
Williams obstetrics.
19 th. Ed
Singapoore:
Prentise HAII International,
1993.
Text.
Gaya MLA
Cunningham, F. Gary...[et.al].
Williams obstetrics.
19 th. Ed
Singapoore:
Prentise HAII International,
1993.
Text.
Gaya Turabian
Cunningham, F. Gary...[et.al].
Williams obstetrics.
19 th. Ed
Singapoore:
Prentise HAII International,
1993.
Print.