United States. Internal Revenue Service. (1920). Internal revenue cumulative bulletin. Bureau of Internal Revenue.
Chicago Style (17th ed.) CitationUnited States. Internal Revenue Service. Internal Revenue Cumulative Bulletin. [Washington, DC]: Bureau of Internal Revenue, 1920.
MLA (9th ed.) CitationUnited States. Internal Revenue Service. Internal Revenue Cumulative Bulletin. Bureau of Internal Revenue, 1920.
Warning: These citations may not always be 100% accurate.