Não informado. (1966). Investigaciones educativas en america. Pan American Union, Department of Educational Affairs.
Style de citation Chicago (17e éd.)Não informado. Investigaciones Educativas En America. Washington: Pan American Union, Department of Educational Affairs, 1966.
Style de citation MLA (8e éd.)Não informado. Investigaciones Educativas En America. Pan American Union, Department of Educational Affairs, 1966.
Attention : ces citations peuvent ne pas être correctes à 100%.