Jeffers 2009, p. 13. Jeffers, H. Paul (2009). Taking Command: General J. Lawton Collins From Guadalcanal to Utah Beach and Victory in Europe. New American Library. ISBN978-0-451-22687-7. OCLC268795491.
Jeffers 2009, pp. 15–16. Jeffers, H. Paul (2009). Taking Command: General J. Lawton Collins From Guadalcanal to Utah Beach and Victory in Europe. New American Library. ISBN978-0-451-22687-7. OCLC268795491.
Taaffe 2013, p. 171. Taaffe, Stephen R. (2013). Marshall and His Generals: U.S. Army Commanders in World War II. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-1942-9. OCLC840162019.
Jeffers 2009, p. 15. Jeffers, H. Paul (2009). Taking Command: General J. Lawton Collins From Guadalcanal to Utah Beach and Victory in Europe. New American Library. ISBN978-0-451-22687-7. OCLC268795491.
Taaffe 2013, p. 172. Taaffe, Stephen R. (2013). Marshall and His Generals: U.S. Army Commanders in World War II. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-1942-9. OCLC840162019.
Taaffe 2013, p. 153. Taaffe, Stephen R. (2013). Marshall and His Generals: U.S. Army Commanders in World War II. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-1942-9. OCLC840162019.
Taaffe 2013, p. 333. Taaffe, Stephen R. (2013). Marshall and His Generals: U.S. Army Commanders in World War II. Lawrence, Kansas: University Press of Kansas. ISBN978-0-7006-1942-9. OCLC840162019.