Dictionary. Gardner's Commercially Important Chemicals. Hoboken, NJ, USA: John Wiley & Sons, Inc. 2005-08-23. doi:10.1002/0471736627.ch1. Sullivan, R. A.
Officers of the United States Army (页面存档备份,存于互联网档案馆), in Bell, William Gardner. COMMANDING GENERALS AND CHIEFS OF STAFF 1775-2005: Portraits & Biographical