Who?

From Author Wars - https://authorwars.com/publications/who-54612.html

Overview:

Title: Who?
Author: Algis Budrys
Year: 1987
ISBN-10: 0445203145
Publisher: Questar / Popular Library
Price: $3.50
Pages: 212
Binding: Paperback
Type: Novel
Title Reference: Who?
Notes:
"First Popular Library Printing: February, 1987" First printing per printer's key: 10 9 8 7 6 5 4 3 2 1 "Cover art copyright © 1987 by James Gurney." stated on copyright page. Signature on the art. C$4.50 in Canada. Month originally from Locus1 Cover artist originally from The Whole Science Fiction Data Base No. 4