000 00297nam a2200133Ia 4500
100 _aWeller,J.Marvin.
365 _b15
942 _cBK
654 _a
245 _aStratigraphic principles and practice
260 _aDelhi
_bUniversal book stall
_c1967
082 _a551.7
300 _bHb
_a16725
999 _c374438
_d374438
041 _aeng