Cita APA (7a ed.)

Lacey, H., & Lambert, T. (2009). Protection and Immunity in Later Medieval England. Pontifical Institute of Mediaeval Studies.

Cita Chicago Style (17a ed.)

Lacey, H., y T. Lambert. Protection and Immunity in Later Medieval England. Pontifical Institute of Mediaeval Studies, 2009.

Cita MLA (9a ed.)

Lacey, H., y T. Lambert. Protection and Immunity in Later Medieval England. Pontifical Institute of Mediaeval Studies, 2009.