APA aipamena

Crisostomo, I. T. (2001). Writing books is hard but rewarding. Philippine Star.

Chicago Style aipamena

Crisostomo, Isabelo T. "Writing Books Is Hard but Rewarding." Philippine Star 2001.

MLA aipamena

Crisostomo, Isabelo T. "Writing Books Is Hard but Rewarding." Philippine Star, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.