APA aipamena

Santiago, R. (1999). The National Osteoporosis awareness week. Manila Bulletin.

Chicago Style aipamena

Santiago, Roni. "The National Osteoporosis Awareness Week." Manila Bulletin 1999.

MLA aipamena

Santiago, Roni. "The National Osteoporosis Awareness Week." Manila Bulletin, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.