TY - BOOK AU - Valacich,Joseph S. AU - George,Joey F. AU - Hoffer,Jeffrey A. TI - Essentials of systems: analysis and design SN - 9780137067114 AV - QA76.9.S88 V23 2012 U1 - 003 22 PY - 2012/// CY - Upper Saddle River, N.J. PB - Prentice Hall KW - System design KW - System analysis N1 - Includes bibliographical references and index ER -