Placement
- contained in Arthur C. Clarke Audiobook Collectionomnibus
- contained in History Lessoncollection
- contained in Science Fiction Special (5)omnibus
- contained in Space Odysseyanthology
- 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 Onecollection