Prime Number

From Author Wars - https://authorwars.com/publications/prime-number-26642.html

Overview:

Title: Prime Number
Author: Harry Harrison
Year: 1970
ISBN-10: 0425018571
Publisher: Berkley Medallion
Price: $0.75
Pages: 191
Binding: Paperback
Type: Collection
Title Reference: Prime Number
Notes:
"Berkley Medallion Edition July, 1970"; no number line The artist is not credited, no visible signature on the artwork; later used/credited on this Dutch title Printed in the US ISBN derived from SBN on copyright page