United States. Postmaster General & Bartlett, J. H. (1924). Observations on duties of "contact men" as applied to Post Office Department organization. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Postmaster General and John H. Bartlett. Observations on Duties of "Contact Men" as Applied to Post Office Department Organization. Washington: U.S. GPO, 1924.
MLA (9th ed.) CitationUnited States. Postmaster General and John H. Bartlett. Observations on Duties of "Contact Men" as Applied to Post Office Department Organization. U.S. GPO, 1924.
Warning: These citations may not always be 100% accurate.