APA (7th ed.) Citation

Seymour-Smith, M. (1969). Poets through their letters. Constable.

Chicago Style (17th ed.) Citation

Seymour-Smith, Martin. Poets Through Their Letters. London: Constable, 1969.

MLA (8th ed.) Citation

Seymour-Smith, Martin. Poets Through Their Letters. Constable, 1969.