editions of The Mammoth Encyclopedia of Science Fiction

The Mammoth Encyclopedia of Science Fiction (Mammoth Books)
by George Mann
avg rating: 3.33 (11 ratings)
isbn: 0786708875 (isbn13: 9780786708871)
published: 2001 by Carroll & Graf | binding: Paperback | pages: 608

The Mammoth Encyclopedia of Science Fiction (Paperback)
by George Mann
avg rating: 3.40 (8 ratings)
isbn: 1841191779 (isbn13: 9781841191775)
published: 2001 by Constable and Robinson | binding: Paperback | pages: 623