(2008). What PEN is about. Philippines Free Press.
Chicago Style (17th ed.) Citation"What PEN Is About." Philippines Free Press 2008.
MLA引文"What PEN Is About." Philippines Free Press, 2008.
警告：這些引文格式不一定是100％准確.
APA引文
(2008). What PEN is about. Philippines Free Press.
Chicago Style (17th ed.) Citation"What PEN Is About." Philippines Free Press 2008.
MLA引文"What PEN Is About." Philippines Free Press, 2008.