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213 pages • first pub 1976 (editions)
ISBN/UID: 9780385097857
Format: Hardcover
Language: English
Publisher: Doubleday Books
Publication date: 01 March 1976
informative
reflective
medium-paced
Description
Explores the pros and cons of the various theories concerning visits to the earth by "ancient astronauts" or extraterrestrial intelligences.
Community Reviews
Content Warnings
213 pages • first pub 1976 (editions)
ISBN/UID: 9780385097857
Format: Hardcover
Language: English
Publisher: Doubleday Books
Publication date: 01 March 1976
informative
reflective
medium-paced
Description
Explores the pros and cons of the various theories concerning visits to the earth by "ancient astronauts" or extraterrestrial intelligences.
Community Reviews
Content Warnings