Cita APA (7th ed.)

Brett, J. P. (1975). Bontok warfare. s.n.

Cita Chicago (17th ed.)

Brett, June Prill. Bontok Warfare. Quezon City: s.n, 1975.

Cita MLA (9th ed.)

Brett, June Prill. Bontok Warfare. s.n, 1975.