000 00280nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a541.224 M979
100 _aMURRELL,J.N
245 0 _aVALANCY THEORY
260 _aNEW YORK
_bWiley
_c1970
300 _a24X16
942 _cBK
_2DDC
999 _c17165
_d17165