00506nam a2200181 4500 2815 20230411085559.0 060907n1989 dr spa 0887302599 funglode2825 EN TK 5101 S617g 1989 Singleton, Loy A Global Impact : the new telecommunication techologies / Loy A. Singleton New York : Haper & Row Publishers, 1989 xii, 270 p. lcc bk 104095 104095 0 0 lcc 0 0 CT BJB BJB HU 2019-01-21 0 TK 5101 S617g 1989 00000012700 2019-01-21 00:00:00 1 2019-01-21 bk