'This anthology contains "Out of this world 3" and "Out of this world 4" previously published as separate volumes' - title-page verso.
'Out of this world 3' originally published 1963. 'Out of this world 4' originally published 1964.
Out of this world : an anthology of science fiction by Amabel Williams-Ellis. ISBN 021688408X. Published by Blackie in 1971. Publication and catalogue information, links to buy online and reader comments.