"jacobs, fred b. "
the abbrasive handbook: / fred.b. jacobs - 1 ed. - uk : penton 1928. - "xiv, 547p.; 23 cm."
621. 922 jac
the abbrasive handbook: / fred.b. jacobs - 1 ed. - uk : penton 1928. - "xiv, 547p.; 23 cm."
621. 922 jac