Cita APA (7a ed.)

Bell, G. L., & Bell, F. E. E. O. (1953). The letters of Gertrude Bell. Penguin.

Cita Chicago Style (17a ed.)

Bell, Gertrude Lowthian, y Florence Eveleen Eleanore Olliffe Bell. The Letters of Gertrude Bell. Melbourne [etc.]: Penguin, 1953.

Cita MLA (9a ed.)

Bell, Gertrude Lowthian, y Florence Eveleen Eleanore Olliffe Bell. The Letters of Gertrude Bell. Penguin, 1953.