Originally published: Philadelphia : Lippincott, 1972 ; London : Hale, 1973. - 'A slightly different version of this work was first published in "Analog, Science Fiction - Science Fact"' - title page verso.
The outposter by Gordon R. Dickson. ISBN 0722129718. Published by Sphere in 1978. Publication and catalogue information, links to buy online and reader comments.