APA (7th ed.) Citation

Wyndham, J., Thornley, G., & Winter, E. (1967). The Kraken wakes (1st published, 9th imp.). Longmans.

Chicago Style (17th ed.) Citation

Wyndham, John, George Thornley, and Eric Winter. The Kraken Wakes. 1st published, 9th imp. London: Longmans, 1967.

MLA (9th ed.) Citation

Wyndham, John, et al. The Kraken Wakes. 1st published, 9th imp. Longmans, 1967.