Cita APA (7th ed.)

Robertson, D. W. (1962). A preface to Chaucer: Studies in medieval perspectives. Princeton University Press.

Cita Chicago (17th ed.)

Robertson, D. W. A Preface to Chaucer: Studies in Medieval Perspectives. Princeton, N.J: Princeton University Press, 1962.

Cita MLA (9th ed.)

Robertson, D. W. A Preface to Chaucer: Studies in Medieval Perspectives. Princeton University Press, 1962.