Echeminada, P. (1997). Valdez on Charter change: Joke only. Philippine Star.
Chicagoスタイル(17版)引用形式Echeminada, Perseus. "Valdez on Charter Change: Joke Only." Philippine Star 1997.
MLA(9版)引用形式Echeminada, Perseus. "Valdez on Charter Change: Joke Only." Philippine Star, 1997.
警告: この引用は必ずしも正確ではありません.