APA (7th ed.) Citation

Barredo, A. P. (1977). Open letter to President Sergio Osmena on the legality of the session of the Congress of the Philippines [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style (17th ed.) Citation

Barredo, Antonio Pagadas. Open Letter to President Sergio Osmena on the Legality of the Session of the Congress of the Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

MLA (9th ed.) Citation

Barredo, Antonio Pagadas. Open Letter to President Sergio Osmena on the Legality of the Session of the Congress of the Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1977.