For
Pete
and
Jane
Sencenbaugh
Copyright 1966 by Robert A. Heinlein
All rights reserved.
A short version of this novel appeared in The Worlds of If magazine. Copyright 1965, 1966 by Robert A. Heinlein.
ISBN 425-03850-5
G.P. Putnam's-Berkley Medallion Edition, September 1968.