Williams, G. C. (1992). Natural selection: Domains, levels, and challenges. Oxford university press.
Chicago-čujuhus (17. p.)Williams, George C. Natural Selection: Domains, Levels, and Challenges. New York: Oxford university press, 1992.
MLA-čujuhus (9. p.)Williams, George C. Natural Selection: Domains, Levels, and Challenges. Oxford university press, 1992.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.