APA (7th ed.) Citation

Adams, D. (1980). The hitch hiker's guide to the galaxy. Arthur Barker Limited.

Chicago Style (17th ed.) Citation

Adams, Douglas. The Hitch Hiker's Guide to the Galaxy. London: Arthur Barker Limited, 1980.

MLA (9th ed.) Citation

Adams, Douglas. The Hitch Hiker's Guide to the Galaxy. Arthur Barker Limited, 1980.