APA (7th ed.) Citation

Cornell, T., & Matthews, J. (1982). Atlas of the Roman world. Facts on File.

Chicago Style (17th ed.) Citation

Cornell, Tim, and John Matthews. Atlas of the Roman World. New York: Facts on File, 1982.

MLA (9th ed.) Citation

Cornell, Tim, and John Matthews. Atlas of the Roman World. Facts on File, 1982.