Tokens
  • Fuld, George. A guide to Civil war store card tokens; a descriptive and price guide to various types of Civil War store card tokens, advertising pieces used as a money substitute during the American civil War. By George and Melvin Fuld. Racine, Wis., Whitman Pub. [1962]
     
  • Hetrich, George. Civil War tokens and tradesman's store cards; a tentative list of the civil War tokens, and store cards issued by the merchants of the United States, and used as money during the period form 1861 to 1864 [by] George Hetrich [and] Julius Guttag. [Kutztown, Pa.] 1924.