Note:
Back to Theodore Savage: A Story of the Past or the Future
- Data from L. W. Currey's online listing (9/15/2012).
- Revised as Lest Ye Die in 1928.
- Available online from The Internet Archive.
- Clute and Nicholls, The Encyclopedia of Science Fiction (1993), pp. 537-38.
- Anatomy of Wonder (1995) 2-48.
- Clareson, Science Fiction in America, 1870s-1930s 393.
- Clarke, Tale of the Future (1978), p. 49.
- Gerber, Utopian Fantasy (1973), p. 150.
- Locke, A Spectrum of Fantasy, p. 103.
- Negley, Utopian Literature: A Bibliography p. 512.
- Sargent, British and American Utopian Literature, 1516-1985, p. 170.
- Stableford, Scientific Romance in Britain 1890-1950, p. 240.
- Bleiler (1978), p. 92.