Abraham, P., Desne, R., & Duchet, C. (1977). 1848 - 1917. Editions Sociales.
Cita Chicago (17th ed.)Abraham, Pierre, Roland Desne, i Claude Duchet. 1848 - 1917. Paris: Editions Sociales, 1977.
Cita MLA (8th ed.)Abraham, Pierre, et al. 1848 - 1917. Editions Sociales, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.