Cita APA (7a ed.)

Thwaite, A. (1978). Twentieth-Century English poetry: An introduction. Heinemann.

Cita Chicago Style (17a ed.)

Thwaite, Anthony. Twentieth-Century English Poetry: An Introduction. London: Heinemann, 1978.

Cita MLA (9a ed.)

Thwaite, Anthony. Twentieth-Century English Poetry: An Introduction. Heinemann, 1978.