Mallet, R., & Royal Society. (1862). Great Neapolitan earthquake of 1857.: The first principles of observational seismology as developed in the report to the Royal society of London of the expedition made by command of the Society into the interior of the kingdom of Naples, to investigate the circumstances of the great earthquake of Demember 1857. Chapman and Hall.

Mallet, Robert, and Royal Society. Great Neapolitan Earthquake of 1857.: The First Principles of Observational Seismology as Developed in the Report to the Royal Society of London of the Expedition Made by Command of the Society into the Interior of the Kingdom of Naples, to Investigate the Circumstances of the Great Earthquake of Demember 1857. Chapman and Hall, 1862.