000 00310nam a2200121Ia 4500
005 20251007104408.0
008 251006s9999 xx 000 0 und d
100 _akopperman,ralph
245 0 _amodel theory and its applions kopperman,ralph
260 _a1st ed. | Boston Allyn
260 _c1972
942 _cBOK
999 _c6318
_d6318