APA (7th ed.) Citation

Eckhoff, E. A., Riecker, P., & Frémont, J. C. (1994). Official map of the Territory of Arizona. [Wide World of Maps].

Chicago Style (17th ed.) Citation

Eckhoff, E. A., Paul Riecker, and John Charles Frémont. Official Map of the Territory of Arizona. [Phoenix, Ariz.]: [Wide World of Maps], 1994.

MLA (9th ed.) Citation

Eckhoff, E. A., et al. Official Map of the Territory of Arizona. [Wide World of Maps], 1994.