Gonzales, F. H., & Guzman, R. D. (1974). Soybean production and marketing in Northern Luzon. Marketing Research Unit, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources.
Cita Chicago (17th ed.)Gonzales, F. H., i R. D. Guzman. Soybean Production and Marketing in Northern Luzon. [Quezon City: Marketing Research Unit, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1974.
Cita MLA (9th ed.)Gonzales, F. H., i R. D. Guzman. Soybean Production and Marketing in Northern Luzon. Marketing Research Unit, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.