id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-10508	Blanchard, J. R.	Agricultural Research and the Exchange Problem	1950-01-01	8	.pdf	application/pdf	7550	691	84	i o n primarily i n t e r e s t e d in a g r T h e r e are three aspects of the exchange problem—the exchange of duplicates, do- mestic exchange and foreign exchange.	cache/crl-10508.pdf	txt/crl-10508.txt