APA (7th ed.) Citation

Milligan, P., Ewins, B., & Dillon, S. (1989). Johnny Nemo (First edition.). Deadline Books.

Chicago Style (17th ed.) Citation

Milligan, Peter, Brett Ewins, and Steve Dillon. Johnny Nemo. First edition. London, England: Deadline Books, 1989.

MLA (9th ed.) Citation

Milligan, Peter, et al. Johnny Nemo. First edition. Deadline Books, 1989.