1John Powell Ward, The English Line: Poetry of the Unpoetic from Wordsworth to larkin. London: Macmillan, 1991,pp.7- 16.
2David Perkins, A History of Modern Poetry: Modernism and After. Cambridge, Mass.: Belknap Press of Harvard University Press, 1987, p. v.
3David Perkins. A History of Modern Poetry: From the 1890's to the High Modernist Mode. Cambridge,Mass.: Belknap Press of Harvard University Press,1976, p. 163.
4Vincent Sherry,"Poetryin England,1945-1990", in Carl Woodring ed., Columbia History of British Poetry. New York: Columbia University Press,1994,p.578.
5Alastair Fowler, A History of English Literature. Oxford: Basil Blackwell, 1989, p. 326.
6Antony Easthope,"Donald Davie and the Failure of Englishness , in Contemporary British Poetry: Essays in Theory and Criticism.James Acheson and Romana Huk eds., Albany,NY: State University of New York Press, 1996, pp.17 - 34.
7Alan Robinson, Instabilities in Contemporary British Poetry. London: Macmillan, 1988, p. 196, p.198.
8James Berry, "The Literature of the Black Experience'', in David Sutcliffe and Ansel Wong eds., The Language of the Black Experience. Oxford: Blackwell, 1986, p.90.