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  • × theme_ss:"Informationsdienstleistungen"
  1. Hernon, P.; McClure, C.R.: Library reference service : an unrecognized crisis - a symposium (1987) 9.21 
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  2. Hernon, P.: Utility measures, not performance measures, for library reference service? (1987) 9.21 
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  3. Hernon, P.; McClure, C.R.: Quality of data issues in unobtrusive testing of library reference service : recommendations and strategies (1987) 9.21 
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  4. Hernon, P.; McClure, C.R.: Unobtrusive reference testing : the 55 percent rule (1986) 9.21 
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  5. Hernon, P.; Relyea, H.C.: Information policy (1991) 9.21 
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  6. Hernon, P.; McClure, C.R.: Electronic U.S. government information : policy issues and directions (1993) 9.21 
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  7. Hernon, P.; Relyea, H.C.: Information policy: United States (2009) 9.21 
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