000 00284nam a2200133Ia 4500
008 220613s9999||||xx |||||||||||||| ||und||
100 _aHubert Bonner
245 0 _aGroup Dyanamics
250 _a1959
260 _bTHE RONALD PRESS
300 _a531
650 _aSPM
942 _cPARAC
999 _c1991
_d1991