APA (7th ed.) Citation

Moore, P. (1977). Guide to comets (Completely revised and new ed.). Lutterworth Press.

Chicago Style (17th ed.) Citation

Moore, Patrick. Guide to Comets. Completely revised and new ed. Guildford: Lutterworth Press, 1977.

MLA (9th ed.) Citation

Moore, Patrick. Guide to Comets. Completely revised and new ed. Lutterworth Press, 1977.