APA

Richards I. A., . (1971). The philosophy of rhetoric. New York: Oxford University Press.

Chicago

Richards I A, . 1971. The philosophy of rhetoric. New York: Oxford University Press.

Harvard

Richards I. A., . (1971). The philosophy of rhetoric. New York: Oxford University Press.

MLA

Richards I A, . The philosophy of rhetoric. New York: Oxford University Press. 1971.