The Hitch-Hiker's Guide to the Galaxy Original Radio Scripts – Douglas Adams – Ramblings on my bookshelves
The Hitchhiker's Guide to the Galaxy: Secondary Phase (Original BBC Radio Series): Douglas Adams, Simon Jones, Geoffrey McGivern, Mark Wing-Davey, Susan Sheridan: 9781602835450: Amazon.com: Books
The Hitchhiker's Guide to the Galaxy: Hexagonal Phase: And Another Thing... The Hitchhiker's Guide to the Galaxy: The Quintessential Phase by Eoin Colfer | Goodreads
The Hitchhiker's Guide to the Galaxy' TV Series In Works At Hulu From Carlton Cuse & Jason Fuchs – Deadline
The Hitchhiker's Guide to the Galaxy Primary and Secondary Phases - Wikipedia