Generally, a 678 field must be justified by a 670 field. If it is not justified and its contents are appropriate for a biographical or historical note, retain the field and add a 670 note citing the internal file of the institution that provided 678 field as follows : | Generally, a 678 field must be justified by a 670 field. If it is not justified and its contents are appropriate for a biographical or historical note, retain the field and add a 670 note citing the internal file of the institution that provided 678 field as follows : |