000 00377nam a2200133Ia 4500
100 _aHagel, John & Armstrong, Arthur G
020 _a0-87584-759-5
654 _aComputer Science
942 _cBK
245 _aNet gain : expanding markets through virtual communities
260 _aHarvard Business School Press, Boston
_c1997
082 _a004.678 Hag/Arm
300 _axvi,238
999 _c28593
_d28593