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MLA

Caswell, Margriet F, and United States. Dept. of Agriculture. Economic Research Service. "Regulating Bio-engineered Foods." ,

APA

Caswell, M. F, & United States. Dept. of Agriculture. Economic Research Service, U. States. Dept. of Agriculture. Economic Research Service. (1993). Regulating bio-engineered foods.

Chicago

Caswell, Margriet F., and United States. Dept. of Agriculture. Economic Research Service. "Regulating bio-engineered foods" (0000):