Who's out there?:
Aylesworth, Thomas G.
Who's out there?: the search for extraterrestrial life / Thomas G. Aylesworth - New York : McGraw-Hill, 1975. - 119p. ill. ;photographs. 21 cm.
Includes index.
Bibliography: p. [113]
Considers the possibilities of life in outer space and the increasing number of reasons for believing in its existence.
9780070026377
Life on other planets--Juvenile literature
Life on other planets
574.999
Who's out there?: the search for extraterrestrial life / Thomas G. Aylesworth - New York : McGraw-Hill, 1975. - 119p. ill. ;photographs. 21 cm.
Includes index.
Bibliography: p. [113]
Considers the possibilities of life in outer space and the increasing number of reasons for believing in its existence.
9780070026377
Life on other planets--Juvenile literature
Life on other planets
574.999