APA-čujuhus (7. p.)
Berra, T. M. (2009). Charles Darwin: The concise story of an extraordinary man. Johns Hopkins University Press.
Chicago-čujuhus (17. p.)
Berra, Tim M. Charles Darwin: The Concise Story of an Extraordinary Man. Baltimore, Md.: Johns Hopkins University Press, 2009.
MLA-čujuhus (9. p.)
Berra, Tim M. Charles Darwin: The Concise Story of an Extraordinary Man. Johns Hopkins University Press, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.