Business software directory / 
compiled and edited by Ruth K. Koolish. 
 - 3rd ed. 
 - Glenview, Ill. :  Information Sources, Inc.,  1986- 
 - 2 v. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer software industry--Directories.<br/>Business--Computer programs--Catalogs.