APA aipamena

Mercado, C. M. (1977). The relative effectiveness of four types of extension publications [microform]. Photoduplication Service.

Chicago Style aipamena

Mercado, Cesar Matamorosa. The Relative Effectiveness of Four Types of Extension Publications [microform]. Quezon City: Photoduplication Service, 1977.

MLA aipamena

Mercado, Cesar Matamorosa. The Relative Effectiveness of Four Types of Extension Publications [microform]. Photoduplication Service, 1977.