Villanueva, M. A. (2004). Purisima named GMA's economic spkesman. Philippine Star.
Chicagoスタイル(17版)引用形式Villanueva, Marichu A. "Purisima Named GMA's Economic Spkesman." Philippine Star 2004.
MLA(9版)引用形式Villanueva, Marichu A. "Purisima Named GMA's Economic Spkesman." Philippine Star, 2004.
警告: この引用は必ずしも正確ではありません.