APA (7e ed.) Bronvermelding

Crisostomo, S. (2006). Gov't steps up promotion of natural family planning method. Philippine Star.

Chicago (17e ed.) Bronvermelding

Crisostomo, Sheila. "Gov't Steps Up Promotion of Natural Family Planning Method." Philippine Star 2006.

MLA (9e ed.) Bronvermelding

Crisostomo, Sheila. "Gov't Steps Up Promotion of Natural Family Planning Method." Philippine Star, 2006.

Let op: Deze citaties zijn niet altijd 100% accuraat.