Mercado, C. M. (1977). The relative effectiveness of four types of extension publications [microform]. Photoduplication Service.
Chicago-Zitierstil (17. Ausg.)Mercado, Cesar Matamorosa. The Relative Effectiveness of Four Types of Extension Publications [microform]. Quezon City: Photoduplication Service, 1977.
MLA-Zitierstil (9. Ausg.)Mercado, Cesar Matamorosa. The Relative Effectiveness of Four Types of Extension Publications [microform]. Photoduplication Service, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.