APA-referens (7:e uppl.)
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.
Chicago-referens (17:e uppl.)
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.
MLA-referens (9:e uppl.)
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.
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