The Star of Life

Hamilton, Edmond

Published by Torquil, New York, 1959 

THE WORLD BELOW

Wright, S. Fowler

Published by Shasta, 1949 

The Crystal World

Ballard, J.G.

Published by Farrar, Straus and Giroux, 1966 

The Demolished Man

Bester, Alfred

Published by Garland Publishing, Incorporated, 1975

ISBN 10: 0824014022ISBN 13: 9780824014025 

The World Of Tiers Volume 1, The Maker Of Universes, The Gates Of Creation

Philip Jose Farmer

Published by Nelson Doublerday, 1966 

THE WORLD OF TWO TIERS VOL. II

FARMER, Philip Jose

Published by Nelson Doubleday, Inc., NY, 1977