Cita APA

Yeoman, R. S. (1968). A guide book of United States coins (21 st. revised edition --.). Racine, Wis.: Whitman.

Citación estilo Chicago

Yeoman, Richard S. A Guide Book of United States Coins. 21 st. revised edition --. Racine, Wis.: Whitman, 1968.

Cita MLA

Yeoman, Richard S. A Guide Book of United States Coins. 21 st. revised edition --. Racine, Wis.: Whitman, 1968.