APA
Thomas, Atkins E. M. & Williams T. (2005). Disputed questions on the virtues. Cambridge, UK: Cambridge University Press.
Chicago
Thomas, Atkins E M and Williams Thomas. 2005. Disputed questions on the virtues. Cambridge, UK: Cambridge University Press.
Harvard
Thomas, Atkins E. M. and Williams T. (2005). Disputed questions on the virtues. Cambridge, UK: Cambridge University Press.
MLA
Thomas, Atkins E M and Williams Thomas. Disputed questions on the virtues. Cambridge, UK: Cambridge University Press. 2005.