United States. Department of the Treasury. (1977). United States of America Treasury notes of September 30, 1981, series K-1981. Treasury Dept., Office of the Secretary.
Chicago Style (17th ed.) CitationUnited States. Department of the Treasury. United States of America Treasury Notes of September 30, 1981, Series K-1981. Washington: Treasury Dept., Office of the Secretary, 1977.
MLA (9th ed.) CitationUnited States. Department of the Treasury. United States of America Treasury Notes of September 30, 1981, Series K-1981. Treasury Dept., Office of the Secretary, 1977.
Warning: These citations may not always be 100% accurate.