The standard cipher code of the American railway association, for the use of all departments of the railway service.
APA Citation
American Railway Association. (1906). The standard cipher code of the American railway association, for the use of all departments of the railway service. [New York: The American railway association].
MLA Citation
American Railway Association. The Standard Cipher Code of the American Railway Association, for the Use of All Departments of the Railway Service. [New York: The American railway association], 1906.
Warning: These citations may not always be complete (especially for serials).