Zimmerman, Steven M. Understanding and using microcomputers / [electronic resource] / Steven Zimmerman, Leo M. Conrad.. — St. Paul : : West Pub. Co.,, c1986.. — xxiv, 339 p. : : ill. ; 27 cm. - The Microcomputing series. Includes bibliographies and index. ISBN: 0314985662 9780314985668 0314935282 (pbk.) : $17.95 9780314935281 (pbk.) LCCN: 85020293 Subjects--Topical Terms: Business--Data processing.Microcomputers--Programming. LC Class. No.: HF5548.2 / .Z58 1986 Dewey Class. No.: 650/.028/5416