000 00251nam a2200109Ia 4500
008 220201s1974 xx 000 0 eng d
100 _aBILLINGS M P
245 0 _aSTRUCTURAL GEOLOGY
260 _aDELHI
_bP H I PUB
_c1974
300 _a606
942 _2ddc
999 _c89293
_d89293