Gallup, George, Jr., and William Proctor. Adventures in Immortality. New York: McGraw-Hill, 1982.
14
Dugatkin, Lee Alan, and Lyndmila Trut. How to Tame a Fox (and Build a Dog): Visionary Scientists and a Siberian Tale of Jump-Started Evolution. Chicago: University of Chicago Press, 2017, p. 229.
