APA aipamena

Mabutas, A., & Paguirigan, D. B. (1976). The Philippine agricultural extension service: Guidbook for extensionists (Updated rev., enl.). Vera Print Press.

Chicago Style aipamena

Mabutas, Andres, and Domingo B. Paguirigan. The Philippine Agricultural Extension Service: Guidbook for Extensionists. Updated rev., enl. Manila: Vera Print Press, 1976.

MLA aipamena

Mabutas, Andres, and Domingo B. Paguirigan. The Philippine Agricultural Extension Service: Guidbook for Extensionists. Updated rev., enl. Vera Print Press, 1976.