Chesterfield, P. D. S., & Roberts, D. (1992). Letters. Oxford University Press.
Cita Chicago Style (17a ed.)Chesterfield, Philip Dormer Stanhope, y David Roberts. Letters. Oxford ; New York: Oxford University Press, 1992.
Cita MLA (9a ed.)Chesterfield, Philip Dormer Stanhope, y David Roberts. Letters. Oxford University Press, 1992.
Precaución: Estas citas no son 100% exactas.