G. E. Bentley, Jr.Blake Books: Annotated Catalogues 
  of William Blake's Writings in Illuminated Printing, in Conventional Typography 
  and in Manuscript and Reprints thereof; Reproductions ofhis designs; Books with 
  his Engravings; Catalogues; Books he owned; and Scholarly and Critical Works 
  about him. Oxford: Clarendon Press, 1977, pp. 364-432; 
  and
_____, Blake Books Supplement: A Bibliography of Publicaations and
Discoveries about William Blake 1971-1992 being a Continuation of
Blake Books.  Oxford: Clarendon Press, 1995, pp. 111-37
[with kind permission already extended from Professor Bentley and Oxford 
University Press, this information will be integrated into this website as soon 
as possible].
Northrop Frye. Fearful Symmetry: A Study of William Blake. 
Princeton: Princeton UP, 1947.
William Harmon, ed. The Top 500 Poems. New York: Columbia UP, 1992.
René Wellek and Austin Warren. Theory of Literature. Rpt. (1949) A Harvest Book. New York: Harcourt, Brace, 1956.