(1997). GSIS ups retirement benefits. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式"GSIS Ups Retirement Benefits." Philippine Daily Inquirer 1997.
MLA(9版)引用形式"GSIS Ups Retirement Benefits." Philippine Daily Inquirer, 1997.
警告: この引用は必ずしも正確ではありません.