000 00346nam a2200157Ia 4500
020 _a9780785422679
082 _bT-422
_a500
100 _a"ROBERT MARSHALL"
245 0 _aEarth Science
260 _bAgs Pub
_c2001
300 _a311
942 _cBK
944 _cText Books
999 _c817591
_d817591