Não informado. (1964). Training in business and industry. Gellert Publishing.
Style de citation Chicago (17e éd.)Não informado. Training in Business and Industry. New York: Gellert Publishing, 1964.
Style de citation MLA (8e éd.)Não informado. Training in Business and Industry. Gellert Publishing, 1964.
Attention : ces citations peuvent ne pas être correctes à 100%.