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  • × author_ss:"McClure, C.R."
  • × author_ss:"Hernon, P."
  1. Hernon, P.; McClure, C.R.: Library reference service : an unrecognized crisis - a symposium (1987) 4.07 
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  2. Hernon, P.; McClure, C.R.: Quality of data issues in unobtrusive testing of library reference service : recommendations and strategies (1987) 4.07 
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  3. Hernon, P.; McClure, C.R.: Unobtrusive reference testing : the 55 percent rule (1986) 4.07 
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  4. Hernon, P.; McClure, C.R.: Electronic U.S. government information : policy issues and directions (1993) 4.07 
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