APA (7th ed.) Citation

Adams, D. (2008). The hitchhiker's guide to the galaxy: Primary phase. BBC Audiobooks America.

Chicago Style (17th ed.) Citation

Adams, Douglas. The Hitchhiker's Guide to the Galaxy: Primary Phase. North Kingstown, R.I.: BBC Audiobooks America, 2008.

MLA (8th ed.) Citation

Adams, Douglas. The Hitchhiker's Guide to the Galaxy: Primary Phase. BBC Audiobooks America, 2008.

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