Franklin

MLA

Harman, Ruth, John Minnis, and Roger H Harper. Sheffield. New Haven, CT: Yale University Press, 2004.

APA

Harman, R., Minnis, J., & Harper, R. H. (2004). Sheffield. New Haven, CT: Yale University Press.

Chicago

Harman, Ruth., John Minnis, and Roger H Harper. Sheffield. New Haven, CT: Yale University Press, 2004.