APA (7. basım) Alıntı

De Leon, H. S. (1989). Textbook on the new Philippine constitution (1989 edition.). Rex Book Store.

Chicago Style (17. basım) Atıf

De Leon, Hector S. Textbook on the New Philippine Constitution. 1989 edition. Manila: Rex Book Store, 1989.

MLA (9th ed.) Atıf

De Leon, Hector S. Textbook on the New Philippine Constitution. 1989 edition. Rex Book Store, 1989.