ELEMENTS OF MINING

YOUNG, GEORGE J.

ELEMENTS OF MINING - 4 - NEW YORK-U.S.A. MCGRAW-HILL BOOK COMPANY 1946 - 755 pag 23 cm - 0 0 .

INTRODUCTION/PROSPECTING/BORING/DRILLING FOR BLASTING PURPOS


CIENCIAS PURAS

549 / Y78
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