Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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