664 - Complex See Reference-Name (NR)
      
      MARC 21 Authority - Concise
      
         					2007
         				
      
      
      Explanatory text and the headings referred to that are required in a
         reference record for names when relationships exist between an unestablished name and
         one or more established names that cannot be adequately conveyed by simple cross
         references generated from 4XX See From Tracing fields in the established heading
                     records.      
      Indicators
      First - Undefined
         
# - Undefined
       
      Second - Undefined
         
# - Undefined
       
      Subfield Codes
      $a - Explanatory text (R)
      $b - Heading referred to (R)
      $t - Title referred to (R)
      
      $8 - Field link and sequence number (R)
         
       
      Examples
      
         
            
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               | 664 | 
               ##$aFor this movement included in the composer's unfinished
                                          Requiem search under$bReger, Max, 1873-1916.$tRequiem (Mass)
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               | 664 | 
               ##$asearch under$bMahfuz, Najib, 1882-$bMahfuz, Najib, 1912-
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