Cita APA (7a ed.)

Bell, W. G., & Wethersett, E. R. (1966). Unknown London (A completely new ed. rev.). Spring Books.

Cita Chicago Style (17a ed.)

Bell, Walter George, y E. R. Wethersett. Unknown London. A completely new ed. rev. London: Spring Books, 1966.

Cita MLA (8a ed.)

Bell, Walter George, y E. R. Wethersett. Unknown London. A completely new ed. rev. Spring Books, 1966.