Before the Golden Age, Book 3

From Author Wars - https://authorwars.com/publications/before-the-golden-age-book-3-418470.html

Overview:

Title: Before the Golden Age, Book 3
Author: Isaac Asimov
Year: 1975
Publisher: Fawcett Crest
Price: C$1.50
Pages: 400
Binding: Paperback
Type: Anthology
Title Reference: Before the Golden Age
Notes:
• "First printing: August 1975"; no number line • The artist is not credited, no visible signature • Cover printed in the US, book in Canada