Specification of John Birkinshaw's patent for an improvement in the construction of malleable iron rails, to be used in rail roads, with remarks on the comparative merits of cast metal and malleable iron rail-ways - Birkinshaw, John ([s.n.], 1822)
Goldsmiths'-Kress no. 23586. - Includes bibliographical references. - OCLC, 16721473. - Reproduction of original from Goldsmiths' Library, University of London