Cita APA (7a ed.)

Halliburton, D. (1989). The color of the sky: A study of Stephen Crane. University Press.

Cita Chicago Style (17a ed.)

Halliburton, David. The Color of the Sky: A Study of Stephen Crane. Cambridge [etc.]: University Press, 1989.

Cita MLA (9a ed.)

Halliburton, David. The Color of the Sky: A Study of Stephen Crane. University Press, 1989.