APA

Brooks C., Purser J. T. & Warren R. P. (1967). An approach to literature. New York: Appleton-Century-Crofts.

Chicago

Brooks Cleanth, Purser John Thibaut and Warren Robert Penn. 1967. An approach to literature. New York: Appleton-Century-Crofts.

Harvard

Brooks C., Purser J. T. and Warren R. P. (1967). An approach to literature. New York: Appleton-Century-Crofts.

MLA

Brooks Cleanth, Purser John Thibaut and Warren Robert Penn. An approach to literature. New York: Appleton-Century-Crofts. 1967.