Nebula awards 21 / edited by George Zebrowski. Nebula awards Science Fiction Writers of America. Science Fiction and Fantasy Writers of America. Science fiction, American Periodicals. PS648.S3 N38 PZ1.A1 N3622 NAB Published: San Diego, Calif. : Harcourt, 1984-1999. Published for: Science Fiction Writers of America, 1983- ; for: Science Fiction and Fantasy Writers of America, <1992>-1999. SERBIB/SERLOC merged record New York [N.Y.] : Arbor House, c1983-c1999. c1983-c1999. 1983 Text Collection 16 v. ; eng Nebula awards showcase Nebula award stories (New York, N.Y. : 1982) Also issued online. Also issued online.