Cita APA (7th ed.)
Yeoman, R. The Official Red Book of United States Coins 1980: A Guide Book of United States Coins : Fully Illustrated Catalog and Valuation List, 1616 to Date. Western Publishing Company.
Cita Chicago (17th ed.)
Yeoman, R.S. The Official Red Book of United States Coins 1980: A Guide Book of United States Coins : Fully Illustrated Catalog and Valuation List, 1616 to Date. Racine, EUA: Western Publishing Company.
Cita MLA (9th ed.)
Yeoman, R.S. The Official Red Book of United States Coins 1980: A Guide Book of United States Coins : Fully Illustrated Catalog and Valuation List, 1616 to Date. Western Publishing Company.
Atenció: Aquestes cites poden no estar 100% correctes.