Berthoff, W. (1989). Hart Crane: A re-introduction / Warner Berthoff. University of Minnesota Press.
Chicago-Zitierstil (17. Ausg.)Berthoff, Warner. Hart Crane: A Re-introduction / Warner Berthoff. Minneapolis, Minn.: University of Minnesota Press, 1989.
MLA-Zitierstil (8. Ausg.)Berthoff, Warner. Hart Crane: A Re-introduction / Warner Berthoff. University of Minnesota Press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.