Echeminada, P. (1997). Valdez on Charter change: Joke only. Philippine Star.
Chicago Style (17th ed.) CitationEcheminada, Perseus. "Valdez on Charter Change: Joke Only." Philippine Star 1997.
MLA引文Echeminada, Perseus. "Valdez on Charter Change: Joke Only." Philippine Star, 1997.
警告:這些引文格式不一定是100%准確.