APA (7th ed.) Citation

Carnell, J. (1973). New writings in SF-21 (Corgi ed.). Corgi Books.

Chicago Style (17th ed.) Citation

Carnell, John. New Writings in SF-21. Corgi ed. London: Corgi Books, 1973.

MLA (8th ed.) Citation

Carnell, John. New Writings in SF-21. Corgi ed. Corgi Books, 1973.