Available in HTML, iso-8859-1, ASCII, and Plucker formats as Ebook #22763.
According to the transcriber's note,
this etext was produced from Future Science Fiction No. 30, 1956. It includes artwork by Emsh, & brief introductory comments apparently by Robert W. Lowndes.
The listings at the top of the edition give the author's name as "Gordon Randall Garrett"; however, the listings within the text give it as "Randall Garrett".
The following credit is given before the text: "Produced by Greg Weeks, Stephen Blundell and the Online Distributed Proofreading Team at http://www.pgdp.net".