9780393330267 | 1 reprint edition (W W Norton & Co Inc, August 1, 2007), cover price $21.95 | About this edition: An argument for the benefits of cloning, co-written by a scientist whose team was responsible for a famous cloned sheep, presents the reasons for his opposition to the cloning of humans and explains that cloning technology can be ethically applied to free families from serious hereditary diseases.

9780316733205 | Gardners Books, July 6, 2006, cover price $21.40 | About this edition: Provides a discussion of the potential value of cloning and of the ethical choices that this technology has raised, including the issues surrounding stem-cell research.

9780393060669 | 1 edition (W W Norton & Co Inc, June 1, 2006), cover price $24.95 | About this edition: An argument for the benefits of cloning, co-written by a scientist whose team was responsible for a famous cloned sheep, presents the reasons for his opposition to the cloning of humans and explains that cloning technology can be ethically applied to free families from serious hereditary diseases.

9780316724692 | Gardners Books, July 6, 2006, cover price $15.15 | About this edition: The definitive book on cloning and the stem-cell controversy by Ian Wilmut, the leader of the team that produced Dolly the sheep

9781400053179 | Harmony Books, March 14, 2006, cover price $24.95 | About this edition: An inside look at stem cell research documents the cutting-edge work being done in this revolutionary and controversial scientific field, examining the political, ethical, and religious issues raised by stem cell research, as well as its potential to transform modern medicine by providing treatments for many currently incurable diseases and ailments.

9780553807363 | Bantam Dell Pub Group, December 29, 2009, cover price $22.00

9780553385786 | Bantam Dell Pub Group, February 23, 2010, cover price $14.00

9780385509282 | 1 edition (Doubleday, September 1, 2003), cover price $24.95 | About this edition: A key player in the science of therapeutic cloning recounts the progress that has been made in reversing the aging process of cells, citing the unique qualities of stem cells and how they can be used to regenerate damaged cells and organs.