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.
Chicago Style (17. basım) AtıfBrett, June Prill, Gladys A. Cruz, Lorelei Crisologo Mendoza, ve 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.
MLA (9th ed.) AtıfBrett, 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.