(1991). Proceedings of the 2nd international symposium on the analytic hierarchy process, Pittsburgh, Pennsylvania, USA, 1991. Pittsburgh, PA.: [s.n.].
Παραπομπή Chicago StyleProceedings of the 2nd International Symposium On the Analytic Hierarchy Process, Pittsburgh, Pennsylvania, USA, 1991. Pittsburgh, PA.: [s.n.], 1991.
Παραπομπή MLAProceedings of the 2nd International Symposium On the Analytic Hierarchy Process, Pittsburgh, Pennsylvania, USA, 1991. Pittsburgh, PA.: [s.n.], 1991.
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