by F. L. Wallace
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.
Five Galaxy Short Novels (1958)
by H. L. Gold
Anthology, 287 pages
The Eleventh Golden Age of Science Fiction Megapack (2014)
Collection
Part 11 of the The Golden Age of Science Fiction Megapack series.
