Which of the following is a correct citation of this source?
A. Harte, Walter Blackburn. "Walt Whitman's Democracy." Digital.library.comell.edu. Cornell University Library. N.p. Web 25 February 2015. B. Harte, Walter Blackburn. "Walt Whitman's Democracy." Digital.library.comell.edu. Comell University Library. N.p. N.d. Web 25 February 2015.
C. Harte, Walter Blackburn. "Walt Whitman's Democracy." Digital.library.comell.edu. Cornell University Library. Web 25 February 2015.
D. Harte, Walter Blackburn. "Walt Whitman's Democracy." Digital.library.comell.edu. Cornell University Library. N.d. Web 25 February 2015.