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1gan Wallraff, Günter, 1942-
Cyhoeddwyd 1970
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3gan Sontz, Ann L., 1942-
Cyhoeddwyd 1978
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6gan Wallraff, Günter, 1942-
Cyhoeddwyd 1970
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7gan Wallraff, Günter, 1942-
Cyhoeddwyd 1967
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8gan Grün, Max von der
Cyhoeddwyd 1977
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9gan Gaul, Dieter
Cyhoeddwyd 1961
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10gan Alheit, Peter
Cyhoeddwyd 1990
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