TY  - BOOK
AU  -  Shelly, Gary B ?[et.al.] 
TI  -  Systems analysis and design / Gary B. Shelly ... [et al.]. 
SN  - 0534984576
U1  - 004.21 SYS 
CY  -  Boston : Boyd & Fraser Pub. Co., c1991. 
KW  - System analysis.   2.System design.
ER  -