Schilling, Donald L. Principles of communication systems / Herbert Taub, Donald L Schilling. - 2nd ed. - New Delhi ; Tata McGraw-Hill Publishing Company Limited : c1986. - 759 p. : ill. ; 23 cm. ISBN: 0070629552 Subjects--Personal Names: ETE Subjects--Topical Terms: Principles of communication systems Dewey Class. No.: 621.38/T222p