Otung Ifiok Digital communications Principles and systems - London The Institute of Engineering and Technology 2014 - xv;497p. cm. ISBN: 4383.4499999999998 Standard No.: 125485 Source: 232, 06/01/2015, Classic Book Service Textual Subjects--Topical Terms: Electronic Science Dewey Class. No.: D65,4:(B252), Q4