Whitten, Jeffrey L. Systems analysis and design methods [Book] / Jeffrey L. Whitten, Lonnie D. Bentley ; special contributions by Kevin C. Dittman. - 6th ed. - Boston, Mass. : Irwin/McGraw-Hill, c1998. - xix, 780 p. : ill. (some col.) ; 29 cm. All. ISBN: 0072474173 0071215212 (international) Subjects--Topical Terms: System design.System analysis. Dewey Class. No.: 004.2 1