- Author: S. C. Sykes Author Record # 4548
- Legal Name: Sykes, Sondra Catherine
- Birthplace: San Antonio, Texas, USA
- Birthdate: 4 September 1943
- Deathdate: 23 July 2005
- Language: English
- Webpages: sf-encyclopedia.com
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Novels
- Red Genesis (1991)
- U.S.S.A. Book 3 (1987)
- Genesi marziana (Complete Novel) [Italian] (1994)
- A Cyphertone [Hungarian] (1985)
- Das Cyphertone [German] (1982)
- Rockabye Baby (1985)
- The Cyphertone (1981)
- Comments by the Nominees (1986) with Brian W. Aldiss and Greg Bear and Michael Bishop and James P. Blaylock and David Brin and Orson Scott Card and Harlan Ellison and Joe Haldeman and Nancy Kress and Barry N. Malzberg and Tim Powers and Lucius Shepard and Bruce Sterling and Michael Swanwick and Howard Waldrop and William F. Wu and Roger Zelazny
- Comments by the Nominees for the 1985 Nebula Awards (1986) with Brian W. Aldiss and Greg Bear and Michael Bishop and James P. Blaylock and David Brin and Orson Scott Card and Harlan Ellison and Joe Haldeman and Nancy Kress and Barry N. Malzberg and Tim Powers and Lucius Shepard and Bruce Sterling and Michael Swanwick and Howard Waldrop and William F. Wu and Roger Zelazny
- Letter (Analog, June 1982) (1982)