Brett, J. P., Cruz, G. A., Mendoza, L. C., & Tapang, B. P. (1994). A comparative study of agricultural commercialization in selected highland communities of the Cordillera-Ilocos Region. Cordillera Studies Center, University of the Philippines College Baguio.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBrett, June Prill, Gladys A. Cruz, Lorelei Crisologo Mendoza, এবং Bienvenido P. Tapang. A Comparative Study of Agricultural Commercialization in Selected Highland Communities of the Cordillera-Ilocos Region. Baguio City: Cordillera Studies Center, University of the Philippines College Baguio, 1994.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBrett, June Prill, et al. A Comparative Study of Agricultural Commercialization in Selected Highland Communities of the Cordillera-Ilocos Region. Cordillera Studies Center, University of the Philippines College Baguio, 1994.