Originally published: as 'Sixth column'. New York : Gnome Press, 1949 ; and as 'The day after tomorrow'. New York : New American Library, 1958 ; London : Mayflower, 1962.
The day after tomorrow by Robert A. Heinlein. ISBN 0450047326. Published by New English Library in 1980. Publication and catalogue information, links to buy online and reader comments.