Matias, B. M. (1998). Opening portals of progress. Manila Bulletin.
Chicagoスタイル(17版)引用形式Matias, Ben-Oliver M. "Opening Portals of Progress." Manila Bulletin 1998.
MLA(9版)引用形式Matias, Ben-Oliver M. "Opening Portals of Progress." Manila Bulletin, 1998.
警告: この引用は必ずしも正確ではありません.