Placement
- contained in Arthur C. Clarke Audiobook Collectionomnibus
- contained in Cats in Space and Other Placesanthology
- contained in Fifty Short Science Fiction Talesanthology
- contained in More Than One Universe: The Collected Stories of Arthur C. Clarkecollection
- contained in Of Time and Starscollection
- contained in Tales of Ten Worldscollection
- contained in The Collected Stories of Arthur C. Clarkecollection
- contained in The Collected Stories: Volume Fourcollection
- contained in The Nine Billion Names of Godcollection