Placement
- contained in Critical Masscollection
- contained in Our Best: The Best of Frederik Pohl and C. M. Kornbluthcollection
- contained in Shared Tomorrows: Science Fiction in Collaborationanthology
- contained in The 7th Annual of the Year's Best S-Fanthology
- contained in The Great SF Stories #23 (1961)anthology
- contained in The Wonder Effectcollection