by Rick Raphael
In addition to its stand-alone volume, this title was published in the follow books. It can be rated independently of any volumes containing it.
The Mammoth Book of New World Science Fiction: Short Novels of the 1960s (1991)
by Charles G. Waugh, Isaac Asimov, Martin H. Greenberg
Anthology, 506 pages
Part of the The Mammoth Book of ... Science Fiction (by decade) series.
The Fifth Science Fiction Megapack (2012)
by John Gregory Betancourt
Anthology, 649 pages
Part 5 of the Science Fiction Megapack series.