L. R. Magnolia

Exobiology

1998

Whales, whaling, and whale res

Whales, whaling, and whale research

1971

Manned Mars missions

Manned Mars missions

1965

The lunar base

The lunar base

1963

Interplanetary matter: a bibli

Interplanetary matter: a bibliography

1962

The lunar problem

The lunar problem

1961