APA (7th ed.) Citation

Lowry, M. (1977). Under the volcano ([8th repr.].). Penguin Books.

Chicago Style (17th ed.) Citation

Lowry, Malcolm. Under the Volcano. [8th repr.]. Harmondsworth: Penguin Books, 1977.

MLA (9th ed.) Citation

Lowry, Malcolm. Under the Volcano. [8th repr.]. Penguin Books, 1977.