TY - BOOK AU - [Tattersall,Arthur Ewart],[from old catalog] AU - Lascelles,T.S.[from old catalog] ED - London and North Eastern Railway. TI - Railway signalling and communications, installation and maintenance .. U1 - 625.165 PY - 1940///] CY - London PB - The St. Margaret's technical press limited KW - Railroads KW - Signaling KW - Telegraph KW - Telephone KW - MCE ER -