International Congress of Logic, Methodology, and Philosophy of Science Uppsala, Sweden, Prawitz, D., Skyrms, B., & Westerst�ahl, D. (1994). Logic, methodology, and philosophy of science IX: Proceedings of the Ninth International Congress of Logic, Methodology, and Philosophy of Science, Uppsala, Sweden, August 7-14, 1991. Elsevier.
Cita Chicago Style (17a ed.)International Congress of Logic, Methodology, and Philosophy of Science Uppsala, Sweden, Dag Prawitz, Brian Skyrms, y Dag Westerst�ahl. Logic, Methodology, and Philosophy of Science IX: Proceedings of the Ninth International Congress of Logic, Methodology, and Philosophy of Science, Uppsala, Sweden, August 7-14, 1991. Amsterdam ; New York: Elsevier, 1994.
Cita MLA (8a ed.)International Congress of Logic, Methodology, and Philosophy of Science Uppsala, Sweden, et al. Logic, Methodology, and Philosophy of Science IX: Proceedings of the Ninth International Congress of Logic, Methodology, and Philosophy of Science, Uppsala, Sweden, August 7-14, 1991. Elsevier, 1994.