Cita APA (7a ed.)

Jones, M. K., & Underwood, M. G. (1992). The king's mother: Lady Margaret Beaufort, countess of Richmond and Derby (1. publ.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Jones, Michael K., y Malcolm G. Underwood. The King's Mother: Lady Margaret Beaufort, Countess of Richmond and Derby. 1. publ. Cambridge [u.a.]: Cambridge University Press, 1992.

Cita MLA (8a ed.)

Jones, Michael K., y Malcolm G. Underwood. The King's Mother: Lady Margaret Beaufort, Countess of Richmond and Derby. 1. publ. Cambridge University Press, 1992.

Precaución: Estas citas no son 100% exactas.