Bàsica BAUGH, A.C. & CABLE, T., A History of the English Language, 1993, Longman
Lass, R., Old English, 1995, Cambridge University Press
Hock, H.H., Principles of Historical Linguistics, 1991, Mouton de Gruyter
Crystal, D., The Cambridge Encyclopedia of the English Language (PART I), 1995, Cambridge University Press
BARBER, C., The English Language. A Historical Introduction, 2000, Cambridge University Press

It is recommended that students buy C. Barber's book as the coursebook.
Complementària