Richardson, Ronny. creator text Blue Ridge Summit, PA Windcrest/McGraw-Hill c1993 1st ed. monographic xix, 406 p. ; 24 cm. + 1 computer disk (3 1/2 in.) Ronny Richardson. Includes index. System requirements for computer disk: IBM PC or compatible; DOS (3.3 or higher recommended). 0 0 0 004_000000000000000_RIC Electronic data processing Batch processing File organization (Computer science) 004 RIC 0830641122 (hard) 0830641130 (pbk.) :