APA (7th ed.) Citation

LEUTSCHER. (1979). Prehistoric monsters. Octopus Books.

Chicago Style (17th ed.) Citation

LEUTSCHER. Prehistoric Monsters. London: Octopus Books, 1979.

MLA (8th ed.) Citation

LEUTSCHER. Prehistoric Monsters. Octopus Books, 1979.

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