Gaya APA
S., D., D., L.Krychman, M. (2011).
Questions & Answers About Human Papilloma Virus (HPV) .
Boston:
Jones and bartlett Publishers.
Gaya MLA
S., D., D., L.Krychman, M..
Questions & Answers About Human Papilloma Virus (HPV).
Boston:
Jones and bartlett Publishers,
2011.
Text.