== Error in Bibliography == 

 Frank M. Snowden, Jr. did not publish the following books listed in his bibliography:  

 Violence and Great Estates in the South of Italy: Apulia, 1900-1922 (1984); Naples in the Times of Cholera (1995) and The Conquest of Malaria: Italy, 1900-1962 (2006). His son, Frank M. Snowden III did. Reference: http://history.yale.edu/people/frank-snowden