APA (7e ed.) Bronvermelding

Umali, C. R. S. (1975). Agricultural employment in region lll, Philippines, 1960-1972 [microform]. Photoduplication Service,University of the Philippines Library.

Chicago (17e ed.) Bronvermelding

Umali, Cesar Ricardo Santos. Agricultural Employment in Region Lll, Philippines, 1960-1972 [microform]. Quezon City: Photoduplication Service,University of the Philippines Library, 1975.

MLA (9e ed.) Bronvermelding

Umali, Cesar Ricardo Santos. Agricultural Employment in Region Lll, Philippines, 1960-1972 [microform]. Photoduplication Service,University of the Philippines Library, 1975.

Let op: Deze citaties zijn niet altijd 100% accuraat.