00419nam a2200157Ia 4500 5441 20261006003849.0 120911s9999 xx 000 0 und d 025619906X 005.1 WHI Whitten, jeffrey l. 3398 Systems analysis and design methods 4th ed. Irwin mcgraw-hill System design 2. System analysis 5181 5441 5441 0 0 0 0 NU NU 2012-09-11 0 005.1 WHI 5606 2012-09-11 00:00:00 2012-09-11 OS