APA (7th ed.) Citation

Shiel, M. P., & Sutherland, J. (2012). The purple cloud / M.P. Shiel ([New ed.].). Penguin.

Chicago Style (17th ed.) Citation

Shiel, M. P., and John Sutherland. The Purple Cloud / M.P. Shiel. [New ed.]. London: Penguin, 2012.

MLA (9th ed.) Citation

Shiel, M. P., and John Sutherland. The Purple Cloud / M.P. Shiel. [New ed.]. Penguin, 2012.

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