Blackwood, Gary L.

Alien astronauts / Gary L. Blackwood. - New York : Benchmark Books, 1999. - p. cm. - Secrets of the unexplained . - Blackwood, Gary L. Secrets of the unexplained. .

Includes index.

Discusses the existence of unidentified flying objects and explanations for various sightings throughout history.

ISBN: 0761404694 (lib. bdg.)

LCCN: 97000013 /AC

Subjects--Topical Terms:
Unidentified flying objects--Juvenile literature.
Unidentified flying objects.

LC Class. No.: TL789.2 / .B53 1999

Dewey Class. No.: 001.942