Cita APA (7a ed.)

Somervell, D. C. (1932). 1832 - 1931. Bell.

Cita Chicago Style (17a ed.)

Somervell, D. C. 1832 - 1931. London: Bell, 1932.

Cita MLA (9a ed.)

Somervell, D. C. 1832 - 1931. Bell, 1932.