Style de citation APA (7e éd.)

Guzman, R., Gonzales, F. H., & Lacy, K. H. (1973). Production and marketing of sorghum in North and South Cotabato. Marketing Research Unit, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources.

Style de citation Chicago (17e éd.)

Guzman, R.D, F. H. Gonzales, et K. H. Lacy. Production and Marketing of Sorghum in North and South Cotabato. Quezon City: Marketing Research Unit, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1973.

Style de citation MLA (9e éd.)

Guzman, R.D, et al. Production and Marketing of Sorghum in North and South Cotabato. Marketing Research Unit, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1973.