by A. E. van Vogt
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.
Masters of Time (1950)
Collection, 227 pages
Astounding Stories: The 60th Anniversary Collection (Vol. 1) (1990)
by James E. Gunn
Anthology, 397 pages
Part 1 of the Astounding Stories: The 60th Anniversary Collection series.
