Retief's War Keith Laumer  

Bolo Keith Laumer  

Retief: Diplomat At Arms Keith Laumer  

Retief to the Rescue Keith Laumer  

The Time Bender Keith Laumer  

The World Shuffler Keith Laumer  

The Return of Retief Keith Laumer  

Rogue Bolo Keith Laumer  

The Frozen Planet Keith Laumer, F. L. Wallace, Allen Kim Lang, Daniel Keyes, Clifford D. Simak  

Cooking for Pleasure Sue Lawrence  

The Origin of Humankind Richard E. Leakey  

London Michael Leapman