Cita APA (7a ed.)

Wells, A. A. M., & Harrison, M. (1957). Early nineteenth century (1. publ.). Allen & Unwin.

Cita Chicago Style (17a ed.)

Wells, A. A. M., y Molly Harrison. Early Nineteenth Century. 1. publ. London: Allen & Unwin, 1957.

Cita MLA (9a ed.)

Wells, A. A. M., y Molly Harrison. Early Nineteenth Century. 1. publ. Allen & Unwin, 1957.