000 00270nam a2200121 a 4500
003 EIA
001 1924
942 _02
_2ddc
_cBK
245 _aMinerals transportation :
_bproceedings
260 _cc1974
008 141112s1974 ck r 000 u spa d
082 _a622.6
_bI61
999 _c9974
_d9974