APA (7th ed.) Citation

Hammond Incorporated. (1966). Hammond medallion world atlas (New perspective ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Hammond Incorporated. Hammond Medallion World Atlas. New perspective ed. Maplewood, N.J.: [publisher not identified], 1966.

MLA (9th ed.) Citation

Hammond Incorporated. Hammond Medallion World Atlas. New perspective ed. [publisher not identified], 1966.