Shelly, Gary B. System Analysis and Design Methods Gary B. Shelly, Thomas J. Cashman, Harry J. Rosenblatt - 9th Edn. - Australia: Cengage Learning, c2006. - 631p.: ills.; 24 cm. Includes Index ISBN: 978-81-315-0549-6 Subjects--Topical Terms: Computer Science Dewey Class. No.: 004.21/ Sh443s/ 2006