Add this copy of Determination of Bit Forces Encountered in Hard Rock to cart. $15.00, very good condition, Sold by Liberty Book Shop rated 4.0 out of 5 stars, ships from Avis, PA, UNITED STATES, published 1983 by US Bureau of Mines.
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Seller's Description:
Very Good+ with no dust jacket. Lg softbound pamphlet, very sl edge wear. Institutional stamp on front cover, very clean. RI 8748.; SC, sm 4to; 24 pages.
