Machines to Make Machines

From Author Wars - https://authorwars.com/books/machines-to-make-machines-128344.html

Overview:

Title: Machines to Make Machines
Author: Frances Yerxa
Year: 1948
Type: Essays

Editions/Publications:

Unknown. Amazing Stories, June 1948 (Unknown, Frances Yerxa, Ziff-Davis Publishing Company, $0.25, 180 pages, pulp, MAGAZINE)
Unknown. Amazing Stories Quarterly (Reissue), Winter 1948 (Unknown, Frances Yerxa, Ziff-Davis, $0.50, pulp, MAGAZINE)