*{{source-attribution|{{citation| lastlast1=de Vernon |firstfirst1=Simon François Gay |coauthorslast2=O'Connor, |first2= John Michael (translator) |year=1817 |title=A Treatise on the Science of War and Fortification: Composed for the Use of the Imperial Polytechnick School, and Military Schools; and Translated for the War Department, for the Use of the Military Academy of the United States: to which is Added a Summary of the Principles and Maxims of Grand Tactics and Operations|publisher=Printed by J. Seymour}} }}