APA (7th ed.) Citation

London, J., Hendricks, K., & Shepard, I. (1966). Letters from Jack London. MacGibbon & Kee.

Chicago Style (17th ed.) Citation

London, Jack, King Hendricks, and Irving Shepard. Letters from Jack London. Lond.: MacGibbon & Kee, 1966.

MLA (8th ed.) Citation

London, Jack, et al. Letters from Jack London. MacGibbon & Kee, 1966.

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