Shrader, Robert L. Electronic communication / Robert L. Shrader. - 4th ed. - New York : Gregg Division, McGraw-Hill, c1980. - xiv, 801 p. : ill. ISBN: 0070571503 Subjects--Topical Terms: Electronics.Radio.Telecommunication. LC Class. No.: TK7815 / .S5 1980 Dewey Class. No.: 621.38