Railway signalling systems,
Day, John Robert.
Railway signalling systems, by John R. Day and B. K. Cooper. Illustrated by Michael G. Young. - London, Muller [1959, c1958] - 144 p. illus. 20 cm. - The Mechanical age library .
Stamped: distributed by Sportshelf, New Rochelle, N.Y.
59003242
GB59-915
Railroads--Signaling.
TF615 / .D3
Railway signalling systems, by John R. Day and B. K. Cooper. Illustrated by Michael G. Young. - London, Muller [1959, c1958] - 144 p. illus. 20 cm. - The Mechanical age library .
Stamped: distributed by Sportshelf, New Rochelle, N.Y.
59003242
GB59-915
Railroads--Signaling.
TF615 / .D3