000 00272nam a2200121Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
082 _a550.246 2 N77 BLY/DEF
100 _aBLYTH G H
245 _aGEOLOGY FOR ENGINEERS
260 _c1977
300 _a557
999 _c13273
_d13273