Thorns

From Author Wars - https://authorwars.com/publications/thorns-491327.html

Overview:

Title: Thorns
Author: Robert Silverberg
Year: 1979
ISBN-10: 0345279689
Publisher: Del Rey / Ballantine
Price: C$2.50
Pages: 222
Binding: Paperback
Type: Novel
Title Reference: Thorns
Notes:
• "First Edition: August 1967" • "Fourth Printing: March 1979"; no number line • "First Canadian Printing: April 1967" which has to be a typo, extremely unlikely the printing was four months before publication • The artist is not credited, M.Tinkelman '78 is on the artwork • Cover printed in the US, book in Canada