Cita APA (7th ed.)

Byrd, R. E. (1939). Alone (1a. ed.). Readers Union Ltd.

Cita Chicago (17th ed.)

Byrd, Richard Evelyn. Alone. 1a. ed. Londres: Readers Union Ltd, 1939.

Cita MLA (9th ed.)

Byrd, Richard Evelyn. Alone. 1a. ed. Readers Union Ltd, 1939.