American Railway Association. The Standard Cipher code of the American Railway Association. For use of all departments of the Railway service. Compiled under the supervision of the committee on Standard Cipher Code of The American Railway Association.
Cita Chicago Style (17a ed.)American Railway Association. The Standard Cipher Code of the American Railway Association. For Use of All Departments of the Railway Service. Compiled Under the Supervision of the Committee on Standard Cipher Code of The American Railway Association. s.l. : s.n., 1906.
Cita MLA (8a ed.)American Railway Association. The Standard Cipher Code of the American Railway Association. For Use of All Departments of the Railway Service. Compiled Under the Supervision of the Committee on Standard Cipher Code of The American Railway Association.