Whitten, Jeffrey L. Systems analysis and design methods / by Jeffrey L. Whitten and Lonnie D. Bentley. - 7th ed. - New Delhi : McGraw Hill Education, c1986 [Reprinted 2013]. - xv, 747 p. : ill. ; 25 cm. ISBN: 9780070634176 0070634173 Subjects--Topical Terms: System design.System analysis. Dewey Class. No.: 004.21