They came from space
By: by Elwood D. Baumann.
Publisher: F. Watts
Published: 1977
Place of publication: New York
Language: eng
Number of pages: 109
Subjects: Interplanetary voyages -- Juvenile literature.; Civilization, Ancient -- Juvenile literature.; Prehistoric peoples -- Juvenile literature.; Interplanetary voyages.; Civilization, Ancient.; Prehistoric peoples.
Description: Presents evidence that suggests many unexplained structures throughout the world are linked to interplanetary visitations.
Notes: Bibliography: p. [101]-102.
Includes index.