000 00544nam a2200217Ia 4500
005 20241216010505.0
008 180423s9999||||xx |||||||||||||| ||und||
082 _a549.23
_bB66
100 _aBOERICKE, WILLIAM F.
245 0 _aOPERATING & PROSPECTING SMALL GOLD PLACERS
250 _a2
260 _aNEW YORK-U.S.A.
_bJOHN WILEY Y SONS
_c199
300 _a145 pag
_c19 cm
341 _h0
490 _v0
_a0
505 _aGOLD-OPERATING
541 _aC
_d25-May-94
650 _aCIENCIAS PURAS
856 _zCC. Puras
942 _cLIBRO
999 _c15836
_d15836