Cita APA (7th ed.)
Knowles, D., & Becket, T. (1980). Tomas Becket. Rialp.
Cita Chicago (17th ed.)
Knowles, David, i Thomas Becket. Tomas Becket. Madrid: Rialp, 1980.
Cita MLA (9th ed.)
Knowles, David, i Thomas Becket. Tomas Becket. Rialp, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.