United States. Postmaster General. (1900). Civil service regulations governing promotions in Railway Mail Service, approved and promulgated by Postmaster General, June 15, 1900. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Civil Service Regulations Governing Promotions in Railway Mail Service, Approved and Promulgated by Postmaster General, June 15, 1900. Washington, D.C.: [publisher not identified], 1900.
MLA (9th ed.) CitationUnited States. Postmaster General. Civil Service Regulations Governing Promotions in Railway Mail Service, Approved and Promulgated by Postmaster General, June 15, 1900. [publisher not identified], 1900.
Warning: These citations may not always be 100% accurate.