Martians, Go Home

Fredric Brown

Next of Kin

Eric Frank Russell

Wasp

Eric Frank Russell

Three to Conquer

Eric Frank Russell

A Canticle for Leibowitz (St. Leibowitz, #1)

Walter M. Miller Jr.

Children of the Lens (Lensman, #6)

E.E. "Doc" Smith

Gray Lensman (Lensman, #4)

E.E. "Doc" Smith

Galactic Patrol (Lensman, #3)

E.E. "Doc" Smith

First Lensman (Lensman, #2)

E.E. "Doc" Smith

Sargasso of Space (Solar Queen, #1)

Andre Norton

Galactic Derelict (Time Traders/Ross Murdock, #2)

Andre Norton

The Time Traders (Time Traders/ Ross Murdock, #1)

Andre Norton

The Crossroads of Time

Andre Norton

Star Guard

Andre Norton

Star Rangers (Central Control #1)

Andre Norton

Star Born

Andre Norton

The Stars Are Ours!

Andre Norton

Brain Wave

Poul Anderson

Flight to Forever

Poul Anderson

The Snows of Ganymede

Poul Anderson

Earthman's Burden (Hoka, #1)

Poul Anderson

Close to Critical

Hal Clement

Mission of Gravity (Mesklin #1)

Hal Clement

Iceworld

Hal Clement

Needle (Needle, #1)

Hal Clement

A Mirror for Observers

Edgar Pangborn

Starship Troopers

Robert A. Heinlein

Methuselah's Children

Robert A. Heinlein

The Door Into Summer

Robert A. Heinlein

Double Star

Robert A. Heinlein