Cita APA

International Conference on Operational Research Hamburg, G. (1981). Operational research 81 :Allemagne, Julliet 20-24, 1981: Proceedings of the Ninth IFORS International Conference on Operational Research Hamburg, Germany, July 20-24, 1981=Actes de la Neuvieme Conference Internationale de Recherche Opérationnelle: Hambourg. Amsterdam: North-Holland.

Citación estilo Chicago

International Conference on Operational Research Hamburg, Germany. Operational Research 81 :Allemagne, Julliet 20-24, 1981: Proceedings of the Ninth IFORS International Conference On Operational Research Hamburg, Germany, July 20-24, 1981=Actes De La Neuvieme Conference Internationale De Recherche Opérationnelle: Hambourg. Amsterdam: North-Holland, 1981.

Cita MLA

International Conference on Operational Research Hamburg, Germany. Operational Research 81 :Allemagne, Julliet 20-24, 1981: Proceedings of the Ninth IFORS International Conference On Operational Research Hamburg, Germany, July 20-24, 1981=Actes De La Neuvieme Conference Internationale De Recherche Opérationnelle: Hambourg. Amsterdam: North-Holland, 1981.