The ISBN of The Hitchhiker's Guide to the Galaxy - novel - is 0-330-25864-8.
The ISBN of Douglas Adams's Guide to The Hitchhiker's Guide to the Galaxy is 0-563-55236-0.
The ISBN of The Andromeda Galaxy is 0792316541.
The ISBN of The Gutenberg Galaxy is 9780802060419.
The ISBN of Disclosure - novel - is 0679419454.
The ISBN of Castle - novel - is 0439176832.
The ISBN of Ash - novel - is 0316040096.
The ISBN of The March - novel - is 0375506713.
The ISBN of Utz - novel - is 0099770016.
The ISBN of The Fold - novel - is 9780399242762.
The ISBN of March - novel - is 0670033359.
The ISBN of Brethren - novel - is 0340839694.
The ISBN of Queens - novel - is 0704300389.