The following table indicates the code used in the 008 of the authority record for each thesaurus supported.

Thesaurus	Bib. 6XX 2nd Indicator	Auth. 008 code	655 §2
Library of Congress Subject Headings (LCSH)	0	a	lcsh
LC subject headings for children's literature	1	b	lcshcl
Medical Subject Headings (MeSH)	2	c	mesh
National Agricultural Library subject authority file	3	d	nalsaf
Canadian Subject Headings	5	k	cshnlc
Art and Architecture Thesaurus	7 §2 = aat	r	aat
Sears List of Subject Headings	7 §2 = sears	s	sears
Répertoire de vedettes-matière	6	v	rvmnlc
Other	4 or 7	z	other