Shelly, Gary B ?[et.al.]
Systems analysis and design / Gary B. Shelly ... [et al.]. - Boston : Boyd & Fraser Pub. Co., c1991.
0534984576
System analysis. 2.System design.
004.21 SYS
Systems analysis and design / Gary B. Shelly ... [et al.]. - Boston : Boyd & Fraser Pub. Co., c1991.
0534984576
System analysis. 2.System design.
004.21 SYS