Francis, R. C. (2004). Why men won't ask for directions: The seductions of sociobiology. Princeton University Press.
Chicago-čujuhus (17. p.)Francis, Richard C. Why Men Won't Ask for Directions: The Seductions of Sociobiology. Princeton, New Jersey: Princeton University Press, 2004.
MLA-čujuhus (9. p.)Francis, Richard C. Why Men Won't Ask for Directions: The Seductions of Sociobiology. Princeton University Press, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.