The Seven Sexes

From Author Wars - https://authorwars.com/publications/the-seven-sexes-438046.html

Overview:

Title: The Seven Sexes
Author: William Tenn
Year: 1980
ISBN-10: 0345289560
Publisher: Del Rey / Ballantine
Price: C$2.75
Pages: 236
Binding: Paperback
Type: Collection
Title Reference: The Seven Sexes
Notes:
• "First Edition: June, 1968" • "Second Printing: October, 1980"; no number line • The artist is not credited, no visible signature on the artwork • Cover printed in the US, book in Canada