INVASION FROM 2500 [by] Norman Edwards [pseudonym]. Derby, Connecticut: Monarch Books, Inc., . Small octavo, pictorial wrappers. First edition. Monarch Books 250. Aliens from the future invade Earth. Reginald 02655. Several scuffs to rear cover, a bright, very good or better copy. Cover illustration by Ralph Brillhart. (#144084).
"Published in August, 1964" on copyright page.