United States. Post Office Department. (1927). Scheme of separation for Boston postal district. P.O. Print.
Chicago Style (17th ed.) CitationUnited States. Post Office Department. Scheme of Separation for Boston Postal District. Boston: P.O. Print, 1927.
MLA (9th ed.) CitationUnited States. Post Office Department. Scheme of Separation for Boston Postal District. P.O. Print, 1927.
Warning: These citations may not always be 100% accurate.