Gaya APA
Cunningham, Gary. (2010).
Williams Obstetrics 23rd edition (23).
Sydney:
mc graw hill.
Gaya Chicago
Cunningham, Gary.
Williams Obstetrics 23rd edition.
23
Sydney:
mc graw hill,
2010.
Text.
Gaya MLA
Cunningham, Gary.
Williams Obstetrics 23rd edition.
23
Sydney:
mc graw hill,
2010.
Text.
Gaya Turabian
Cunningham, Gary.
Williams Obstetrics 23rd edition.
23
Sydney:
mc graw hill,
2010.
Print.