Cita APA (7th ed.)
Killingsworth, M. J. (2004). Walt Whitman & the earth: A study in ecopoetics. University of Iowa Press.
Cita Chicago (17th ed.)
Killingsworth, M. Jimmie. Walt Whitman & the Earth: A Study in Ecopoetics. Iowa City: University of Iowa Press, 2004.
Cita MLA (9th ed.)
Killingsworth, M. Jimmie. Walt Whitman & the Earth: A Study in Ecopoetics. University of Iowa Press, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.