Gillett, Mary C. (1981). Army Medical Department, 1775-1818. Washington, DC: United States Army Center of Military History. {{cite book}}: Check |authorlink= value (help); External link in |authorlink= (help); Text "Center of Military History" ignored (help)
Gillett, Mary C. (1987). Army Medical Department, 1818-1865. Washington, DC: United States Army Center of Military History. {{cite book}}: Check |authorlink= value (help); External link in |authorlink= (help); Text "Center of Military History" ignored (help)
Gillett, Mary C. (1995). Army Medical Department, 1865-1917. Washington, DC: United States Army Center of Military History. {{cite book}}: Check |authorlink= value (help); External link in |authorlink= (help); Text "Center of Military History" ignored (help)
Gillett, Mary C. (2009). Army Medical Department, 1917-1941. Washington, DC: United States Army Center of Military History. {{cite book}}: Check |authorlink= value (help); External link in |authorlink= (help); Text "Center of Military History" ignored (help)
Goleman, Daniel (1995). Emotional Intelligence: Why it Can Matter More Than IQ. New York, NY, USA: Bantam Books. ISBN978-0-553-38371-3.
Goleman, Daniel (2002). Primal Leadership: Learning to Lead with Emotional Intelligence. Boston, MA, USA: Harvard Business School Press. ISBN978-1-59139-184-5. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
Goleman, Daniel (1998). Working with Emotional Intelligence. New York, NY, USA: Bantam Books. ISBN978-0-553-37858-0.