|
1.
|
Köln : C. Heymann, c1988.
Third edition.
German | G 87 HAE.A |
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2.
|
Köln : Heymann, c1985.
German | G 32 VOL.R |
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|
3.
|
[Place of publication not identified] : [publisher not identified], 1989.
German | N 631 SCH.R |
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4.
|
München : J. Schweitzer, 1984.
German | G 22 GAU.R |
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5.
|
Berlin : Schweitzer Verlag, 1972.
German | N 621 VIN.R |
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