United States. Office of the First Assistant Postmaster General. (1908). Instructions relative to efficiency records of post office clerks and city letter carriers. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Office of the First Assistant Postmaster General. Instructions Relative to Efficiency Records of Post Office Clerks and City Letter Carriers. [Washington]: [publisher not identified], 1908.
MLA (9th ed.) CitationUnited States. Office of the First Assistant Postmaster General. Instructions Relative to Efficiency Records of Post Office Clerks and City Letter Carriers. [publisher not identified], 1908.
Warning: These citations may not always be 100% accurate.