'The rings of Saturn' originally published under the name Paul French as 'Lucky Starr and the rings of Saturn'. Garden City [N.Y.]: Doubleday, 1958. 'The moons of Jupiter' originally published under the name Paul French as 'Lucky Starr and the moons of Jupiter'. Garden City [N.Y.]: Doubleday, 1957.
The third Isaac Asimov double : The rings of Saturn; [and], The moons of Jupiter by Isaac Asimov. ISBN 0450015955. Published by New English Library in 1973. Publication and catalogue information, links to buy online and reader comments.