Brett, J. P. (1987). Coping strategies in the Bontok highland agroecosystem: The role of ritual. Cordillera Studies Center, University of the Philippines College Baguio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBrett, 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.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBrett, June Prill. Coping Strategies in the Bontok Highland Agroecosystem: The Role of Ritual. Cordillera Studies Center, University of the Philippines College Baguio, 1987.
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