International Conference on Operational Research, International Federation of Operational Research Societies, & Bradley, H. E. (1991). Operational research'90: Selected papers from the Twelfth IFORS International Conference on Operational Research = Actes de la Douzième Conférence Internationale de Recherche Opérationnelle de l'IFORS : Athens, Greece, 25-29 June 1990. Pergamon.
Cita Chicago Style (17a ed.)International Conference on Operational Research, International Federation of Operational Research Societies, y Hugh E. Bradley. Operational Research'90: Selected Papers from the Twelfth IFORS International Conference on Operational Research = Actes De La Douzième Conférence Internationale De Recherche Opérationnelle De L'IFORS : Athens, Greece, 25-29 June 1990. Oxford [etc.]: Pergamon, 1991.
Cita MLA (9a ed.)International Conference on Operational Research, et al. Operational Research'90: Selected Papers from the Twelfth IFORS International Conference on Operational Research = Actes De La Douzième Conférence Internationale De Recherche Opérationnelle De L'IFORS : Athens, Greece, 25-29 June 1990. Pergamon, 1991.
