Cita APA (7a ed.)

Forster, R., & Forster, E. (1969). European society in the eighteenth century. Macmillan.

Cita Chicago Style (17a ed.)

Forster, Robert, y Elborg Forster. European Society in the Eighteenth Century. London [etc.]: Macmillan, 1969.

Cita MLA (9a ed.)

Forster, Robert, y Elborg Forster. European Society in the Eighteenth Century. Macmillan, 1969.