Cita APA (7a ed.)

Probyn, C. T. (1989). English poetry (4th impression.). Longman [etc.].

Cita Chicago Style (17a ed.)

Probyn, Clive T. English Poetry. 4th impression. Harlow [etc.]: Longman [etc.], 1989.

Cita MLA (9a ed.)

Probyn, Clive T. English Poetry. 4th impression. Longman [etc.], 1989.