Available in unpaginated HTML, plain text (us-ascii), & Plucker formats from Ebook #19338.
Produced from Venture Science Fiction, July 1957. The HTML version includes artwork from that issue, uncredited but "C S"; evidence in the Venture issue indicates that this is Cindy Smith.
The Project Gutenberg wrapper identifies the author as Henry Beam Piper, the transcribed text as H. Beam Piper.
"Produced by Greg Weeks, Sankar Viswanathan, and the Online
Distributed Proofreading Team at http://www.pgdp.net".