Brett, J. P. (1987). Coping strategies in the Bontok highland agroecosystem: The role of ritual. Cordillera Studies Center, University of the Philippines College Baguio.
Chicago Style aipamenaBrett, June Prill. Coping Strategies in the Bontok Highland Agroecosystem: The Role of Ritual. Baguio City: Cordillera Studies Center, University of the Philippines College Baguio, 1987.
MLA aipamenaBrett, June Prill. Coping Strategies in the Bontok Highland Agroecosystem: The Role of Ritual. Cordillera Studies Center, University of the Philippines College Baguio, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.