Isidro y Santos, A. (1950). Philippine social life and youth. [s.n.].
Chicagoスタイル(17版)引用形式Isidro y Santos, Antonio. Philippine Social Life and Youth. Quezon City: [s.n.], 1950.
MLA(9版)引用形式Isidro y Santos, Antonio. Philippine Social Life and Youth. [s.n.], 1950.
警告: この引用は必ずしも正確ではありません.