A treatise upon coal-mines, or, An attempt to explain their general marks of indication, acknowledg'd and probable together with particular instances of their public utility, objections to the mode of their discovery, and to their manufacture, obviated, &c - Sharp, William (Printed for the author, 1769)
Goldsmiths'-Kress no. 10526. - Higgs, H. Bibl. of economics, 4590. - OCLC, 24311545. - Reproduction of original from Goldsmiths' Library, University of London