id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-14176	McCarthy, Constance	The Reliability Factor in Subject Access	1986	9	.pdf	application/pdf	5954	245	59	Before discussing this matter further, it may be useful to consider briefly the pur- pose of subject headings or descriptors and the ways in which a search based on their use differs from one using free text or key words. My viewpoint on subject headings is that of a consumer, not a producer; my ideas have been arrived at through my experience in Constance McCarthy is assistant head of the reference department at Northwestern University, Evanston, Illi- nois 60201.	cache/crl-14176.pdf	txt/crl-14176.txt