APA (7th ed.) Citation

Ganthony, R., & West, M. P. (1960). A message from Mars (7th imp.). Longmans.

Chicago Style (17th ed.) Citation

Ganthony, Richard, and Michael Philip West. A Message from Mars. 7th imp. London [etc.]: Longmans, 1960.

MLA (9th ed.) Citation

Ganthony, Richard, and Michael Philip West. A Message from Mars. 7th imp. Longmans, 1960.