- Kazuo Ishiguro. Never Let Me Go. New York: Vintage International, 2005.
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James Watson. "Moving Toward a Clonal Man: Is This What We Want?" The Atlantic Monthly (1971).
- Leon R. Kass, James Q. Wilson. "The Ethics of Human Cloning." The New York Times. 1998-09-06. 2011-12-03. <http://www.nytimes.com/books/first/k/kass-cloning.html>.
- James Wood. "The Human Difference." The New Republic. 2005-05-12. 2011-12-04. <http://www.powells.com/review/2005_05_12.html>.
- Rachel Cusk. "Rereading: Never Let Me Go by Kazuo Ishiguro." The Guardian. 2011-01-28. 2011-12-04. <http://www.guardian.co.uk/books/2011/jan/29/never-let-me-go-kazuo-ishiguro>.
- Susannah Hunnewell. "The Art of Fiction, No. 196: Kazuo Ishiguro." The Paris Review. 2008-03-01. 2011-12-04. <http://www.theparisreview.org/interviews/5829/the-art-of-fiction-no-196-kazuo-ishiguro>.