Não informado. (1967). WORLD MEETINGS, UNITED STATES AND CANADA. Technical Meetings Information Service.
Style de citation Chicago (17e éd.)Não informado. WORLD MEETINGS, UNITED STATES AND CANADA. New York: Technical Meetings Information Service, 1967.
Style de citation MLA (8e éd.)Não informado. WORLD MEETINGS, UNITED STATES AND CANADA. Technical Meetings Information Service, 1967.
Attention : ces citations peuvent ne pas être correctes à 100%.