Gibe, B. P., & Pagsuberon, I. C. (1980). Writing broadcast materials for the countryside. Philippine Council for Agriculture and Resources Research and Development in Cooperation with the Agricultural Support Services Project, Bureau of Agricultural Extension-Ministry of Agriculture.
Chicago Style (17. basım) AtıfGibe, Bienvenido P., ve Ignacio C. Pagsuberon. Writing Broadcast Materials for the Countryside. Los Banos, Laguna: Philippine Council for Agriculture and Resources Research and Development in Cooperation with the Agricultural Support Services Project, Bureau of Agricultural Extension-Ministry of Agriculture, 1980.
MLA (9th ed.) AtıfGibe, Bienvenido P., ve Ignacio C. Pagsuberon. Writing Broadcast Materials for the Countryside. Philippine Council for Agriculture and Resources Research and Development in Cooperation with the Agricultural Support Services Project, Bureau of Agricultural Extension-Ministry of Agriculture, 1980.