Ingalsbe, Lon. Business applications software for the IBM PC / Lon Ingalsbe. - 2nd ed. - Columbus : Merrill, c1987. - 1 v. (various pagings) : ill. (some col.) ; plus 5 1/4 inch diskettes. ISBN: 0675207606 Subjects--Topical Terms: IBM Personal Computer--Programming.Business--Data processing. Dewey Class. No.: 650.02855365