Placement
- Federation
- contained in Federationcollection
- contained in Five Sci-Fi Short Storiescollection
- contained in Five Sci-Fi Short Stories by H. Beam Pipercollection
- contained in Flight from Tomorrowcollection
- contained in Flight from Tomorrow and Other Science Fictioncollection
- contained in Graveyard of Dreamscollection
- contained in Sci-Fi Ultimate Collectionomnibus
- contained in Short Stories of H. Beam Pipercollection
- contained in Terro-Human Future History: Complete Seriesomnibus
- contained in The Essential H. Beam Piper Collectioncollection
- contained in The H. Beam Piper Megapackomnibus