The Purity Plot

From Author Wars - https://authorwars.com/publications/the-purity-plot-131381.html

Overview:

Title: The Purity Plot
Author: E. E. 'Doc' Smith, Stephen Goldin
Year: 1978
ISBN-10: 058604339X
Publisher: Panther / Granada
Price: £0.75
Pages: 159
Binding: Paperback
Type: Novel
Title Reference: The Purity Plot
Notes:
Apparent first printing.
Month from Amazon.uk
"Panther Granada" on spine, "Panther Science Fiction" on cover.
Other prices: Canada $2.25, Australia $2.50, New Zealand $2.50
Artist credited in this pub.