000 00425nam a2200169Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a551.71
_bGS.P.4
245 _aGeologic systems
_bThe precambrian
260 _aLondon
_bInterscience
_c1970
300 _a288p.
650 _aArcheozoic era
650 _aGeologic system
700 _aRankama Kalervo
_4ed.
942 _cBK
999 _c64589
_d64589