Não informado. (1969). Eric news. Eric Clearinghouse on Teacher Education.
Style de citation Chicago (17e éd.)Não informado. Eric News. Washington: Eric Clearinghouse on Teacher Education, 1969.
Style de citation MLA (8e éd.)Não informado. Eric News. Eric Clearinghouse on Teacher Education, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.