Dean, F. E. Tunnels and tunnelling. Illustrated by Kenneth M. Sibley. - London, F. Muller [1962] - 144 p. illus. 19 cm. - The Mechanical age library . Stamped on t.p.: Distributed by Sportshelf, New Rochelle, N.Y. Subjects--Topical Terms: MCETunnelingTunnels Dewey Class. No.: 624.193 / DEA