10. Automatic actions for several fields during cataloguing in a CBS MARC 21 database Laatst bijgewerkt Opslaan als pdf The translation on this website may be generated by machine translation. The quality and accuracy of machine translation can vary significantly from one text to another. Read the page in original English here. 01. Introduction02. “Exceptional” fields and subfields - bibliographic records03. Different situations on the main level of bibliographic records04. “Exceptional” fields and subfields - authority records05. Different situations on the main level of authority records