The Man Who Folded Himself

The Man Who Folded Himself is a 1973 science fiction novel by David Gerrold that deals with time travel.
It was nominated for the Nebula Award for Best Novel in 1973 and the Hugo Award for Best Novel in 1974.

Unabridged audio book from the Library for the blind. (32kbps mp3)
Narrated by Ray Hagen.