APA استشهاد

Collier, P., & Geyer-Ryan, H. (1990). Literary theory today. Cornell University Press.

استشهاد بنمط شيكاغو

Collier, Peter, و Helga Geyer-Ryan. Literary Theory Today. New York: Cornell University Press, 1990.

MLA استشهاد

Collier, Peter, و Helga Geyer-Ryan. Literary Theory Today. Cornell University Press, 1990.