Dyfyniad APA
Mill, J. S., Bromwich, D., Kateb, G., & Elshtain, J. B. (2003). On liberty. Yale University Press.
Dyfyniad Arddull Chicago
Mill, John Stuart, David Bromwich, George Kateb, and Jean Bethke Elshtain. On Liberty. New Haven: Yale University Press, 2003.
Dyfyniad MLA
Mill, John Stuart, et al. On Liberty. Yale University Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.