5]Dawn B. Sova. Edgar Allen Poe from A to Z: the Essential Reference to His Life and Work[M].New York: Chechmark Books, 2001 : 133.
6Bloom, Harold. The Western Canon: The Books and School of the Ages[M].Austin: Warner books, 1995 : 2-4.
7Edgar Allen Poe."The Poetic Principle", in Nina Baym etc. The Norton Anthology of American Literature[M].New York: W.W. Norton & Company, 1994 : 1547,1547,1558.