Roy - Railway Engineering and Security - New hardback or cased book - X555z

Roy - Handbook of Railway Engineering and Security - New hardback or c - X555z

Boucher - Voice Teletraffic Systems Engineering - New hardback or case - X555z

Railway Systems Engineering: Security Concerns by Marshall Roy: New

Railway Engineering and Systems - New Hardback - X555z

Dassios - Dynamical Systems in Engineering - New hardback or cased boo - X555z

Ellis - ' British Railway Engineering Encyclopaedia - New hardback or - X555z

Roy - Asia in Transition - New hardback or cased book - X555z