Alviar, N. G. (1976). An economic comparison between tractor-operated and carabao-cultivated rice farms [microform]. Photoduplication Service,University of the Philippines library.
Citace podle Chicago (17th ed.)Alviar, Nelly Guevarra. An Economic Comparison Between Tractor-operated and Carabao-cultivated Rice Farms [microform]. Quezon City: Photoduplication Service,University of the Philippines library, 1976.
Citace podle MLA (9th ed.)Alviar, Nelly Guevarra. An Economic Comparison Between Tractor-operated and Carabao-cultivated Rice Farms [microform]. Photoduplication Service,University of the Philippines library, 1976.
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