Cita APA (7a ed.)

Spencer Northcote, J., Allard, P., & Brownlow, W. (1874). Rome souterraine. Lib. Académique.

Cita Chicago Style (17a ed.)

Spencer Northcote, J., Paul Allard, y W.R Brownlow. Rome Souterraine. Paris: Lib. Académique, 1874.

Cita MLA (9a ed.)

Spencer Northcote, J., et al. Rome Souterraine. Lib. Académique, 1874.