00677nam a2200217 a 4500 120227s1993 njua 001 0 eng d 92028935 0132034646 DLC DLC DLC BD-KhUET 004.6 20 Black, Uyless D. Data communications and distributed networks / Uyless D. Black. 3rd ed. Englewood Cliffs, N.J. : Prentice Hall, c1993. xvi, 426 p. : ill. ; 25 cm. Includes index. Data transmission systems. Computer networks. Electronic data processing Distributed processing. 3663 3663