APA aipamena

Estupigan, R. (1999). The compatibility factor. Manila Bulletin.

Chicago Style aipamena

Estupigan, Ruth. "The Compatibility Factor." Manila Bulletin 1999.

MLA aipamena

Estupigan, Ruth. "The Compatibility Factor." Manila Bulletin, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.