De Guzman, D. (1997). Guide for effective study. Manila Bulletin.
Chicagoスタイル(17版)引用形式De Guzman, Desiderio. "Guide for Effective Study." Manila Bulletin 1997.
MLA(9版)引用形式De Guzman, Desiderio. "Guide for Effective Study." Manila Bulletin, 1997.
警告: この引用は必ずしも正確ではありません.