Originally published separately under the name Paul French as 'David Starr, space ranger' and 'Lucky Starr and the pirates of the asteroids'. Garden City [N.Y.]: Doubleday, 1952 and 1953.
An Isaac Asimov double : Space ranger; [and], Pirates of the asteroids by Isaac Asimov. ISBN 0450013138. Published by New English Library in 1972. Publication and catalogue information, links to buy online and reader comments.