Introduction to systems analysis and design / I.T. Hawryszkiewycz. Systems analysis and design. Hawryszkiewycz, I. T. System analysis. T57.6 .H39 1990 001.61 20 HAI Includes bibliographical references (p. 377-380) and index. New York : Prentice Hall, c1991. c1991. 1991 Text xii, 385 p. : eng