Cita APA (7a ed.)

De Leon, H. S. (1973). Textbook on the new Philippine constitution. Rex Book Store.

Cita Chicago Style (17a ed.)

De Leon, Hector S. Textbook on the New Philippine Constitution. Manila: Rex Book Store, 1973.

Cita MLA (9a ed.)

De Leon, Hector S. Textbook on the New Philippine Constitution. Rex Book Store, 1973.