De Leon, H. S. (1973). Textbook on the new Philippine constitution. Rex Book Store.
Chicagoスタイル(17版)引用形式De Leon, Hector S. Textbook on the New Philippine Constitution. Manila: Rex Book Store, 1973.
MLA(9版)引用形式De Leon, Hector S. Textbook on the New Philippine Constitution. Rex Book Store, 1973.
警告: この引用は必ずしも正確ではありません.