The Door Through Space

From Author Wars - https://authorwars.com/publications/the-door-through-space-505769.html

Overview:

Title: The Door Through Space
Author: Marion Zimmer Bradley
Year: 1979
ISBN-10: 009921170X
Publisher: Arrow Books
Price: £0.95
Pages: 140+[1]
Binding: Paperback
Type: Novel
Title Reference: The Door Through Space
Notes:
• "First published in Great Britain by Arrow Books 1979" • Month from amazon.uk • Printing not stated, no number line • The artist is not credited, Melvyn is on the artwork • UK 95p, Australia$3.20, New Zealand $3.25