1. Thucydides (Crawley R, trans),1934
2. A basic history of clinical and biological weapons: ancient times to the 19th century. Available at http://www.cbwinfo.com/history/history.html. Accessed October 18, 2004.
3. Admiral Cochrane’s plans for chemical warfare;Miles;Armed Forces Chem J,1957
4. The chemical shells of Lyon Playfair (1854);Miles;Armed Forces Chem J,1957
5. Gas warfare;Waitt,1942