Não informado. (1970). Energy. U.S. Department of Commerce, National Technical Information Service.
Style de citation Chicago (17e éd.)Não informado. Energy. Springfield, Va: U.S. Department of Commerce, National Technical Information Service, 1970.
Style de citation MLA (8e éd.)Não informado. Energy. U.S. Department of Commerce, National Technical Information Service, 1970.
Attention : ces citations peuvent ne pas être correctes à 100%.