867 (Supplements) and 868 (Indexes) fields
 
NOTE: This section applies to supplements or indexes noted on the bib for the main parent title, and considered secondary to the vols. of the main title.   If the supplement or index has it own separate bib record, holdings are entered in the 866 field(s) of its holdings record.
 
a)  Holdings statements for supplements and indexes are entered in their own fields; holdings for other types of accompanying material are entered in the 866 field.
 
b)  When the supplementary material has its own numbering, independent of the numbering scheme of the basic bibliographic unit, begin subfield a of 867 with the term: Suppl. (unless 9.d applies).  Enter the term both when the pieces are called “supplement” or the equivalent in other languages and when the supplementary item lacks such a term.   If the supplementary material is associated with specific vols. or issues of the basic bibliographic unit, enter the term after all hierarchical levels of the associated piece.
Examples:
 
Suppl. vols. with independent numbering:
    867 ‡a Suppl. no.1-Suppl. no.3
 
Supplements to vols. of the basic unit:
    867 ‡a v.25:suppl.-v.26:suppl.;v. 32:suppl.
    867 ‡a 1995:suppl.2
 
c)  Precede ‡ a of 868 with the term:  Index, followed by the enumeration of the index volume(s) held.
 
d)  If the supplement or index has a distinctive title or designation, enter the name in quotation marks in subfield a; otherwise, use the standard terms, suppl. or index, regardless of language of the publication.
 
Examples:
867 ‡a ”Annual buyers' supplement” no.1-no.3
867 ‡a “Extra holiday issue” v.25:suppl.
868 ‡a “Author index” v.16-25