APA aipamena

Villa, H. P. (1999). Panay horn bills fly no more. Manila Bulletin.

Chicago Style aipamena

Villa, Hazel P. "Panay Horn Bills Fly No More." Manila Bulletin 1999.

MLA aipamena

Villa, Hazel P. "Panay Horn Bills Fly No More." Manila Bulletin, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.