Singson, R. B. (2006). Pap smear and early detection key to cervical cancer treatment. Manila Standard Today.
Chicago-referens (17:e uppl.)Singson, Rebecca B. "Pap Smear and Early Detection Key to Cervical Cancer Treatment." Manila Standard Today 2006.
MLA-referens (9:e uppl.)Singson, Rebecca B. "Pap Smear and Early Detection Key to Cervical Cancer Treatment." Manila Standard Today, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.