Adams, D. (2008). The hitchhiker's guide to the galaxy: Primary phase. BBC Audiobooks America.
Cita Chicago Style (17a ed.)Adams, Douglas. The Hitchhiker's Guide to the Galaxy: Primary Phase. North Kingstown, R.I.: BBC Audiobooks America, 2008.
Cita MLA (8a ed.)Adams, Douglas. The Hitchhiker's Guide to the Galaxy: Primary Phase. BBC Audiobooks America, 2008.
Precaución: Estas citas no son 100% exactas.