First U.S./English edition. Dust jacket price-clipped, with <1inch tear to bottom left of front cover at spine. Some tattering to edges with two closed (taped on reverse) chips to rear of jacket. Bumping and rubbing to edges of boards. Some scattered soiling to side of page block. Interior clean and unmarked, binding still tight.
Title: Secret Doors of the Earth
Publisher: Henry Regnery Company
Publication Date: 1975
Binding: Hardcover
Condition: Very Good
Dust Jacket Condition: Good
ISBN: 0809282089 / 9780809282081