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.
Цитирование в стиле Чикаго (17-е изд.)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.
Цитирование MLA (9-е изд.)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.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.