Placement
- contained in An Arthur C. Clarke Omnibusomnibus
- contained in Arthur C. Clarke Audiobook Collectionomnibus
- contained in Expedition to Earthcollection
- contained in Prelude to Marsomnibus
- contained in Tales from Planet Earthcollection
- contained in The Best of Arthur C. Clarke: 1937-1955collection
- contained in The Best of Arthur C. Clarke: 1937-1971collection
- contained in The Collected Stories of Arthur C. Clarkecollection
- contained in The Collected Stories: Volume Twocollection