Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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