000 00292nam a2200121Ia 4500
001 111173
008 170722s9999 xx 000 0 und d
100 _aBredemeier, Harry C.
245 _aAnalysis of social systems. /
260 _c1962.
700 _aStephenson , Richard M.
942 _cGEN
999 _c60152
_d60152