Não informado. (1976). Commerce America. U.S. Department of Commerce.
Style de citation Chicago (17e éd.)Não informado. Commerce America. Washington: U.S. Department of Commerce, 1976.
Style de citation MLA (8e éd.)Não informado. Commerce America. U.S. Department of Commerce, 1976.
Attention : ces citations peuvent ne pas être correctes à 100%.