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1.
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[Place of publication not identified] : [Schulthess Polygraphischer Verlag], 1975.
German | N 621 REC.A |
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2.
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Zürich : Schulthess, c1993.
German | N 612 LOC.I |
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3.
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Zurich : Schulthess, 1989.
Second edition.
German | F 44 THO.I |
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4.
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[Place of publication not identified] : [Suisse], 1982.
German | F 42 IMM |
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5.
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Zürich : Schulthess Polygraphischer Verlag, 1990.
French | N 40 DES.R |
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