Gerald,Curtis F Electronic communication systems, - 3rd ed. - [S.l.] : McGraw-Hill Inc.,US, 1994 - 741 p. ; ISBN: 0070340544 (hardcover) 9780070340541 (hardcover) Subjects--Topical Terms: Computer ScienceCreative TechnologySoftware Engineering Dewey Class. No.: 518 / GRE-A