id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-11890	Clarke, Robert F.; Clarke, Haydee Garcia	Repeat Photocopying of Journal Articles	1966-08-31	4	.pdf	application/pdf	2007	109	63	Further, the above means of 5.9 and 6.1 approximate each other, so that the mean number of articles photocopied per jour- nal title approaches the mean number of photocopies produced per journal title, all for journal titles published in the United States. 3921 College & Research Libraries • September, 1966 Stockpiling of extra copies of noncopy- righted journal articles which have been photocopied once, or more likely more than once, might be studied.	cache/crl-11890.pdf	txt/crl-11890.txt