Gisbert Hasenjaeger. Einführung in die Grundbegriffe und Probleme der modernen Logik. Studium universale. Verlag Karl Alber, Freiburg and Munich
1962, 202 pp. -
G. Hasenjaeger. Introduction to the basic concepts and problems of modern logic. A slightly revised English translation of the preceding by E. C. M. Mays. D. Reidel Publishing Company, Dordrecht, Holland, and Humanities Press, New York, 1972, 180 pp.
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New York
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