Protector

From Author Wars - https://authorwars.com/publications/protector-427999.html

Overview:

Title: Protector
Author: Larry Niven
Year: 1981
ISBN-10: 0345293029
Publisher: Del Rey / Ballantine
Price: $2.25
Pages: 218
Binding: Paperback
Type: Novel
Title Reference: Protector
Notes:
• "First Edition: September 1973" • "Ninth Printing: May 1981"; no number line. • "Cover art by H. R. Van Dongen" on the copyright page, the artwork is also signed • Some copies sold in Canada had a publisher's sticker on the cover with B.B.C.|$2.75|Price in Canada; unknown if any copies were printed in Canada