APA (7th ed.) Citation

Brett, J. P. 1. (1977). Bontok warfare [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17th ed.) Citation

Brett, June Prill 1939-5. Bontok Warfare [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

MLA (9th ed.) Citation

Brett, June Prill 1939-5. Bontok Warfare [microform]. Photoduplication Service, University of the Philippines Library, 1977.