Gaya APA

Shyock, H. et al (2002). Women At Risk : The HPV Epidemic and Your Cervical Health . New York: Avery Penguin Putnam.

Gaya MLA

Shyock, Harold. et al. "Women At Risk : The HPV Epidemic and Your Cervical Health". New York: Avery Penguin Putnam, 2002. Text.