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= 046 Special coded dates =
 
= 046 Special coded dates =
'''Généralités'''
+
'''General'''
    
Best practice: When encoding date information, give the fullest information about the date that is readily available (the date in field 046 may be more precise than a date used in the 100 subfield $d). When revising existing authority records, record dates in field 046 even if the heading itself does not have dates in 100 subfield $d, when the information is readily available.  
 
Best practice: When encoding date information, give the fullest information about the date that is readily available (the date in field 046 may be more precise than a date used in the 100 subfield $d). When revising existing authority records, record dates in field 046 even if the heading itself does not have dates in 100 subfield $d, when the information is readily available.  

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