Holford, M. L., & Stringer, K. J. (2010). Border liberties and loyalties: North-east England, c.1200 - c.1400. Edinburgh University Press.
Lua i Stíl Chicago (17ú heag.)Holford, M. L., agus K. J. Stringer. Border Liberties and Loyalties: North-east England, C.1200 - C.1400. Edinburgh: Edinburgh University Press, 2010.
Lua MLA (9ú heag.)Holford, M. L., agus K. J. Stringer. Border Liberties and Loyalties: North-east England, C.1200 - C.1400. Edinburgh University Press, 2010.
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