Mutants

From Author Wars - https://authorwars.com/publications/mutants-276511.html

Overview:

Title: Mutants
Author: Robert Silverberg
Year: 1977
ISBN-10: 055210387X
Publisher: Corgi
Price: £0.65
Pages: 204
Binding: Paperback
Type: Anthology
Title Reference: Mutants
Notes:
First printing.
Month of publication from amazon.uk, not stated in pub, only year.
Other prices: Australia $1.90, New Zealand $2.15.
Artist is not credited but cover is signed. "PAJ 76".