id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-13948	Hodowanec, George V.	Literature Obsolescence, Dispersion, and Collection Development	1983	23	.pdf	application/pdf	12191	440	46	Circulation: 1,000 volumes Annual ratios of XYZ volumes circulated in 1980 (by year of acquisition) to the total XYZ volumes acquired (by same year of acquisition): 1979 1978 1977 1976 1975 1974 100/200 180/220 210/215 150/205 95/195 90/210 .50 .72 .98 .73 .49 .43 By grouping the circulated volumes ac- cording to their Dewey divisional classifi- cations and their years of acquisitions, in- formation on book use as a function of time for each library subject area of each instructional department's curriculum- supporting collection was generated. The curves from these five graphs were super- imposed to illustrate diverse patterns of book use as a function of time.	cache/crl-13948.pdf	txt/crl-13948.txt