Lathi,B.P. Modern Digital and analog Communication Systems - 2nd ed. - Bangalore Prism book 1989 - xiv,720 p. - Series in Electrical Engineering/edit by M.E. Van Valkenburg . Includes Appendix and Index ISBN: 81-7286-009-9 Dewey Class. No.: S/C-S/T D65 M9L;1