The early years of the Ordnance Survey / Charles Close ; a reprint with a new introduction by J. B. Harley and with an index added. Close, Charles, Col. Sir Great Britain. Ordnance Survey. GA66.G7 A7 1969 526.8 CLE "Reprinted from the Royal Engineers journal." Reprint of the 1926 ed. Includes bibliographies. London : David & Charles Reprints, 1969. 1969. 1969 Text xxxv, 164 p. : eng