Cita APA (7th ed.)

National food review Economics, Statistics, and Cooperatives Service, U.S. Department of Agriculture. [electronic resource].

Cita Chicago (17th ed.)

National Food Review Economics, Statistics, and Cooperatives Service, U.S. Department of Agriculture. [electronic Resource].

Cita MLA (9th ed.)

National Food Review Economics, Statistics, and Cooperatives Service, U.S. Department of Agriculture. [electronic Resource].

Atenció: Aquestes cites poden no estar 100% correctes.