I 651.8 Arn M3 Arnold, Robert R Modern data processing [by] Robert R. Arnold, Harold C. Hill [and] Aylmer V. Niohols. 2ª ed. New York, J Wiley [c1972] xvi, 374 p. ilus. 26 cm. <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0060199" property = "oa:link" href="http://www.worldcat.org/oclc/ 556900890 ">WorldCat</a>