Billington, M. (1988). Peggy Ashcroft. Murray.
Cita Chicago (17th ed.)Billington, Michael. Peggy Ashcroft. London: Murray, 1988.
Cita MLA (9th ed.)Billington, Michael. Peggy Ashcroft. Murray, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.