id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crln-20932	Vileno, Luigina	Geography resources on the Internet	1997	5	.pdf	application/pdf	3711	274	81	Access: h ttp :// w w w .usgs.gov. Access: h ttp :// w w w .ce n su	cache/crln-20932.pdf	txt/crln-20932.txt