Buttrey, T. V., Hubbard, C., Johnson, P., & Kissner, R. B. (1977). A guide book of Mexican coins: 1822 to date (3rd ed.). Western Pub. Co., Whitman Coin Products.
Cita Chicago Style (17a ed.)Buttrey, Theodore V., Clyde Hubbard, Pat Johnson, y Robert B. Kissner. A Guide Book of Mexican Coins: 1822 to Date. 3rd ed. Racine, Wis.: Western Pub. Co., Whitman Coin Products, 1977.
Cita MLA (9a ed.)Buttrey, Theodore V., et al. A Guide Book of Mexican Coins: 1822 to Date. 3rd ed. Western Pub. Co., Whitman Coin Products, 1977.
Precaución: Estas citas no son 100% exactas.