Bednarz, James P. (2001): . New York: Columbia University Press. Bowers, F. (1961): , i 4 bind, Cambridge University Press Chapman, L.S. (1985): , Lang Gasper, J. (1990): , Oxford: Clarendon. Gregg, Kate (1924): . Seattle: University of Washington Press. Hunt, Mary (1911): . New York: Columbia University Press. McLuskie, Kathleen (1993): . New York: St. Martin's Press. Wilson, F.P, red. (1925): . Oxford: Clarendon Press.