Abaya, A. P., & Asuncion, T. B. (1985). Cost and returns of sweet potato in selected provinces: Philippines, 1983. Bureau of Agricultural Economics.
Citace podle Chicago (17th ed.)Abaya, Aurelia P., a Tirso B. Asuncion. Cost and Returns of Sweet Potato in Selected Provinces: Philippines, 1983. Quezon City: Bureau of Agricultural Economics, 1985.
Citace podle MLA (9th ed.)Abaya, Aurelia P., a Tirso B. Asuncion. Cost and Returns of Sweet Potato in Selected Provinces: Philippines, 1983. Bureau of Agricultural Economics, 1985.
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