International Commission for the History of Universities, Gabriel, A. L., & Gieysztor, A. (1977). The economic and material frame of the mediaeval university: Proceedings of the International Commission for the History of Universities, held in San Francisco, California (USA), August 27, 1975, (International Congress of Historical Sciences). The Commission.
Cita Chicago Style (17a ed.)International Commission for the History of Universities, Astrik L. Gabriel, y Aleksander Gieysztor. The Economic and Material Frame of the Mediaeval University: Proceedings of the International Commission for the History of Universities, Held in San Francisco, California (USA), August 27, 1975, (International Congress of Historical Sciences). Notre Dame, Ind.: The Commission, 1977.
Cita MLA (8a ed.)International Commission for the History of Universities, et al. The Economic and Material Frame of the Mediaeval University: Proceedings of the International Commission for the History of Universities, Held in San Francisco, California (USA), August 27, 1975, (International Congress of Historical Sciences). The Commission, 1977.