by Lloyd Biggle, Jr.
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 Puzzle Planet / The Angry Espers (1961)
by Robert A. W. Lowndes, Lloyd Biggle, Jr.
Omnibus, 136 pages
The 14th Science Fiction Megapack (2019)
by John Gregory Betancourt
Anthology
Part 14 of the Science Fiction Megapack series.
