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.
Atenció: Aquestes cites poden no estar 100% correctes.
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.