Não informado. (1949). The Vocational Aspect of Education. Colleges of Education Technical.
Style de citation Chicago (17e éd.)Não informado. The Vocational Aspect of Education. London: Colleges of Education Technical, 1949.
Style de citation MLA (8e éd.)Não informado. The Vocational Aspect of Education. Colleges of Education Technical, 1949.
Attention : ces citations peuvent ne pas être correctes à 100%.