APA (7th ed.) Citation

(1973). Map of Krypton. [National Periodical Publications].

Chicago Style (17th ed.) Citation

Map of Krypton. [New York]: [National Periodical Publications], 1973.

MLA (9th ed.) Citation

Map of Krypton. [National Periodical Publications], 1973.

Warning: These citations may not always be 100% accurate.