| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| American Practice in Block Signaling: With Descriptions and Drawings of the Different Systems in Use On Railroads in the United States | 978-1-145-67433-2 (1-145-67433-X) | 2010 |
R. A. · Rahel Asyah · Reilly Askew · Rilla Askew · Rola Ajjawi
Railway & Locomotive Historical