APA (7e ed.) Bronvermelding

Ahmad, I. (1978). The effect of pump irrigation on the income of rice farmers: A case study in Pila, Laguna, Philippines, 1974-1975 [microform]. Photoduplication Service, University of the Philippines Library.

Chicago (17e ed.) Bronvermelding

Ahmad, Ismet. The Effect of Pump Irrigation on the Income of Rice Farmers: A Case Study in Pila, Laguna, Philippines, 1974-1975 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1978.

MLA (9e ed.) Bronvermelding

Ahmad, Ismet. The Effect of Pump Irrigation on the Income of Rice Farmers: A Case Study in Pila, Laguna, Philippines, 1974-1975 [microform]. Photoduplication Service, University of the Philippines Library, 1978.