Gaya APA
Berek, J, S. (2012).
BEREK AND NOVAK'S GYNECOLOGY (15th edition).
Philadelphia:
Lippincott Williams & Wilkins.
Gaya MLA
Berek, Jonathan, S.
"BEREK AND NOVAK'S GYNECOLOGY".
15th edition
Philadelphia:
Lippincott Williams & Wilkins,
2012.
Text.