Friend, G. E. (1984). Understanding Data Communications. Howard W. Sams & Co.
Chicago Style (17th ed.) CitationFriend, George E. Understanding Data Communications. Howard W. Sams & Co, 1984.
MLA (8th ed.) CitationFriend, George E. Understanding Data Communications. Howard W. Sams & Co, 1984.
Warning: These citations may not always be 100% accurate.