Shelly, Gary B. Systems analysis and design / Gary B. Shelly, Thomas J. Cashman, Harry J. Rosenblatt - 6th ed. - Boston, Mass. : Thomson/Course Technology, c2006 - 689 p. : col. ill. + 1 CD-ROM - Shelly Cashman series . Includes index ISBN: 0619255102 Subjects--Topical Terms: System analysisSystem design LC Class. No.: T57.6 / S534S 2006