APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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