Eckfeldt, J. R. (1850). New varieties of gold and silver coins, counterfeit coins, and bullion: With mint values. The authors.
Chicago-Zitierstil (17. Ausg.)Eckfeldt, Jacob Reese. New Varieties of Gold and Silver Coins, Counterfeit Coins, and Bullion: With Mint Values. Philadelphia: The authors, 1850.
MLA-Zitierstil (9. Ausg.)Eckfeldt, Jacob Reese. New Varieties of Gold and Silver Coins, Counterfeit Coins, and Bullion: With Mint Values. The authors, 1850.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.