000 00278nam a2200121Ia 4500
008 220201s1974 xx 000 0 eng d
082 _a624.17
_bBEL
100 _aBell, BJ
245 0 _aAdvanced theory of structure
260 _bMacdonald
_c1974
300 _a199
942 _2ddc
999 _c81259
_d81259