Citação norma APA

Osmena, S., Sr. (1973). How Baguio City was born [microform]. Photoduplication Service, University of the Philippines Library.

Citação norma Chicago

Osmena, Sergio, Sr. How Baguio City Was Born [microform]. [Quezon City]: Photoduplication Service, University of the Philippines Library, 1973.

Citação norma MLA

Osmena, Sergio, Sr. How Baguio City Was Born [microform]. Photoduplication Service, University of the Philippines Library, 1973.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.