000 002780000a22001210004500
245 _aTheory and problems of earth sciences
100 _aBeiser, Arthur
260 _aNew York
_bMcGraw Hill
_c1975
300 _a129 p.
080 _a55(076)
_bB4
041 _aEN
942 _cBK
999 _c101890
_d101890