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  • × author_ss:"Bleul, I."
  • × type_ss:"a"
  • × year_i:[1960 TO 1970}
  1. Zenker, H.; Bleul, I.: ¬Die Informationstätigkeit in staatlichen allgemeinen öffentlichen Bibliotheken : Grundsätze und Empfehlungen (1969) 0.00 
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