APA aipamena

Sy, G. S. (2012). Breast cancer. IN Life extension [column]. Manila Bulletin.

Chicago Style aipamena

Sy, Gary S. "Breast Cancer. IN Life Extension [column]." Manila Bulletin 2012.

MLA aipamena

Sy, Gary S. "Breast Cancer. IN Life Extension [column]." Manila Bulletin, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.