000 00294pam a2200133a 44500
082 _a629
_bEL59s
100 _aEllis, David O.
245 1 _aSYSTEMS PHILOSOPHY
260 _aN. J.
_bPrentice-Hall
_c1962
300 _a387
700 _aLudwig, Fred J.
964 _gCIRC
997 _a24055 C
999 _c418172
_d418172