United States. Department of the Interior. (1929). Annual report of Secretary of Interior for fiscal year ended June 30, 1930. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of the Interior. Annual Report of Secretary of Interior for Fiscal Year Ended June 30, 1930. [Washington]: GPO, 1929.
MLA (9th ed.) CitationUnited States. Department of the Interior. Annual Report of Secretary of Interior for Fiscal Year Ended June 30, 1930. GPO, 1929.
Warning: These citations may not always be 100% accurate.