Cita APA (7th ed.)
Empson, W., & Haffenden, J. (2006). Selected letters of William Empson. Oxford University Press.
Cita Chicago (17th ed.)
Empson, William, i John Haffenden. Selected Letters of William Empson. Oxford ; New York: Oxford University Press, 2006.
Cita MLA (9th ed.)
Empson, William, i John Haffenden. Selected Letters of William Empson. Oxford University Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.