2008 Hugo Nomination List. Denvention 3: The 66th World Science Fiction Convention. World Science Fiction Society. 2008 [2008-03-21]. (原始内容存档于2008-12-21).
2008 Hugo Nomination List. Denvention 3: The 66th World Science Fiction Convention. World Science Fiction Society. 2008 [2008-03-21]. (原始内容存档于2008-12-21).