Cita APA (7a ed.)

Cristobal, R. L. (1979). The use of audio-visual materials in the high school classes of the National Teachers College [microform]. Photoduplication Service. University of the Philippines Library.

Cita Chicago Style (17a ed.)

Cristobal, Remedios L. The Use of Audio-visual Materials in the High School Classes of the National Teachers College [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1979.

Cita MLA (9a ed.)

Cristobal, Remedios L. The Use of Audio-visual Materials in the High School Classes of the National Teachers College [microform]. Photoduplication Service. University of the Philippines Library, 1979.