Constantino, E. O. How Philippine education can be improve. s.n.
Chicagoスタイル(17版)引用形式Constantino, E O. How Philippine Education Can Be Improve. [Manila: s.n.
MLA(9版)引用形式Constantino, E O. How Philippine Education Can Be Improve. s.n.
警告: この引用は必ずしも正確ではありません.