Eckfeldt, J. R. (1850). New varieties of gold and silver coins, counterfeit coins, and bullion: With mint values. The authors.
Chicago Style (17th ed.) CitationEckfeldt, Jacob Reese. New Varieties of Gold and Silver Coins, Counterfeit Coins, and Bullion: With Mint Values. Philadelphia: The authors, 1850.
MLA (9th ed.) CitationEckfeldt, Jacob Reese. New Varieties of Gold and Silver Coins, Counterfeit Coins, and Bullion: With Mint Values. The authors, 1850.
Warning: These citations may not always be 100% accurate.