APA (7th ed.) Citation

Laumer, K. (1970). Nine by Laumer (1st Sphere Books ed.). Sphere Books.

Chicago Style (17th ed.) Citation

Laumer, Keith. Nine by Laumer. 1st Sphere Books ed. London: Sphere Books, 1970.

MLA (8th ed.) Citation

Laumer, Keith. Nine by Laumer. 1st Sphere Books ed. Sphere Books, 1970.

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