Codes from either the [http://www.loc.gov/standards/sourcelist/occupation.html/view Occupation Term Source Codes] or [http://www.loc.gov/standards/sourcelist/subject.html/view the Subject Source Codes] lists may be recorded in subfield $2 for the 374 field.
+
Codes from either the [http://www.loc.gov/standards/sourcelist/occupation.html/view Occupation Term Source Codes] or the [http://www.loc.gov/standards/sourcelist/subject.html/view Subject Source Codes] lists may be recorded in subfield $2 for the 374 field.
'''Subfield $s – Start period and Subfield $t – End period'''
'''Subfield $s – Start period and Subfield $t – End period'''