Não informado. (1963). English Teaching Forum. U.S. Information Agency.
Style de citation Chicago (17e éd.)Não informado. English Teaching Forum. Washington: U.S. Information Agency, 1963.
Style de citation MLA (8e éd.)Não informado. English Teaching Forum. U.S. Information Agency, 1963.
Attention : ces citations peuvent ne pas être correctes à 100%.