United States. Postal Service. Second Assistant Postmaster General. (1907). Specifications relating to mail catchers and deliverers intended for purpose of effecting exchange of mails with moving trains under advertisement of Oct. 8, 1907. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Postal Service. Second Assistant Postmaster General. Specifications Relating to Mail Catchers and Deliverers Intended for Purpose of Effecting Exchange of Mails with Moving Trains Under Advertisement of Oct. 8, 1907. Washington, D.C.: [publisher not identified], 1907.
MLA (9th ed.) CitationUnited States. Postal Service. Second Assistant Postmaster General. Specifications Relating to Mail Catchers and Deliverers Intended for Purpose of Effecting Exchange of Mails with Moving Trains Under Advertisement of Oct. 8, 1907. [publisher not identified], 1907.