APA (7. basım) Alıntı

Castillo, L. L. (1980). The effects of extension and technical knowledge on farmer productivity in Nueva Ecija, Philippines [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style (17. basım) Atıf

Castillo, Linda Lao. The Effects of Extension and Technical Knowledge on Farmer Productivity in Nueva Ecija, Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1980.

MLA (9th ed.) Atıf

Castillo, Linda Lao. The Effects of Extension and Technical Knowledge on Farmer Productivity in Nueva Ecija, Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1980.