Fable, Parable, And Allegory, General theory and history

D.C. Allen, Mysteriously Meant: The Rediscovery of Pagan Symbolism and Allegorical Interpretation in the Renaissance (1970); C.H. Dodd, The Authority of the Bible (1958); A.S. Fletcher, Allegory: The Theory of a Symbolic Mode (1964); R.M. Grant, The Letter and the Spirit (1958); Edwin Honig, Dark Conceit: The Making of Allegory (1959); C.S. Lewis, The Allegory of Love (1936); Jean Pepin, Mythe et allégorie (1958); Rosemond Tuve, Allegorical Imagery (1966); Maureen Quilligan, The Language of Allegory: Defining the Genre (1979).