Safety rules : [electronic resource] military railway service, U.S. army.
Safety rules : : military railway service, U.S. army. [electronic resource] . — Washington : : U.S. G.P.O.,, 1944.. — ii, 22 p. ; 17 cm. — (United States. War Department Pamphlet ;) no. 55-1. - War Department Pamphlet ; no. 55-1. .