Son of Man

From Author Wars - https://authorwars.com/publications/son-of-man-274273.html

Overview:

Title: Son of Man
Author: Robert Silverberg
Year: 1977
ISBN-10: 0345257456
Publisher: Del Rey / Ballantine
Price: $1.50
Pages: 213
Binding: Paperback
Type: Novel
Title Reference: Son of Man
Notes:
• "Second Printing: March 1977"; no number line • Cover art credited to Tinkelman on copyright page, no visible signature • OCLC has 1971, 1977 printing but only notes the ISBN of the 1971 printing