APA (7th ed.) Citation

Ryan, P. (1971). The invasion of the moon, 1957-1970 (Revised and enlarged ed.). Penguin.

Chicago Style (17th ed.) Citation

Ryan, Peter. The Invasion of the Moon, 1957-1970. Revised and enlarged ed. Harmondsworth: Penguin, 1971.

MLA (8th ed.) Citation

Ryan, Peter. The Invasion of the Moon, 1957-1970. Revised and enlarged ed. Penguin, 1971.