Close to Critical

From Author Wars - https://authorwars.com/publications/close-to-critical-113241.html

Overview:

Title: Close to Critical
Author: Hal Clement
Year: 1968
ISBN-10: 0552079154
Publisher: Corgi Books / Transworld Publishers
Price: 3/6
Pages: 158
Binding: Paperback
Type: Novel
Title Reference: Close to Critical
Notes:
• "Copyright © 1958 by Street and Smith Publications, Inc." • "First published in Astounding Science Fiction Magazine" • "Victor Gollancz Edition published 1966" • "Corgi Edition published 1968" • Printing not stated, no number line • The artist is not credited, no visible signature on the artwork • Australia 60¢, New Zealand 45¢