APA (7th ed.) Citation

Beerbohm, M., Hart-Davis, R., & Turner, R. (1964). Letters to Reggie Turner. Hart-Davis.

Chicago Style (17th ed.) Citation

Beerbohm, Max, Rupert Hart-Davis, and Reggie Turner. Letters to Reggie Turner. London: Hart-Davis, 1964.

MLA (8th ed.) Citation

Beerbohm, Max, et al. Letters to Reggie Turner. Hart-Davis, 1964.