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1.
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Baden-Baden : Nomos Verlagsgesellschaft, 1989.
First edition.
English | N 634 BEC.EU |
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2.
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Madrid : Tecnos, c1984.
Spanish | N 621 VID.A |
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3.
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Baden-Baden [Germany] : Nomos, 1989.
German | N 634 BEC.E |
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4.
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[Place of publication not identified] : [publisher not identified], 1972.
German | N 624 SON.M |
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