APA (7th ed.) Citation

Suster, G. (1981). Hitler and the Age of Horus (1. publ.). Sphere Books.

Chicago Style (17th ed.) Citation

Suster, Gerald. Hitler and the Age of Horus. 1. publ. London: Sphere Books, 1981.

MLA (9th ed.) Citation

Suster, Gerald. Hitler and the Age of Horus. 1. publ. Sphere Books, 1981.

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