Greybeard is a science fiction novel by British author Brian Aldiss, published in 1964.
"Helliconia" is an omnibus of the three novels in Brian W. Aldiss' Helliconia series.
Helliconia Summer is a book written by Brian W. Aldiss that was published in 1983.
Helliconian kevät on Brian Aldissin tieteisromaani vuodelta 1982. Teos on ensimmäinen osa Helliconia-trilogiasta. Teos sai British Science Fiction Association Awardin ja John W. Campbell Memorial Awardin.