อ้างอิง ของ แฮโรลด์ บราวน์

  1. ↑ "Harold Brown, Former U.S. Defense Secretary and Secretary of the Air Force, Dies at 91". RAND Corporation. January 5, 2019. สืบค้นเมื่อ January 27, 2021.
  2. 1 2 3 "Harold Brown, former U.S. defense secretary and secretary of the air force, dies at 91". RAND.org (ภาษาอังกฤษ). January 5, 2019. สืบค้นเมื่อ January 10, 2019.
  3. ↑ Brown, Harold (1951). Beta-spectra of gaseous argon-41 and oxygen-15 (PhD). Columbia University. OCLC 459393268. ProQuest 302087185.
  4. 1 2 Lester, Will (January 6, 2019). "Former defense secretary Harold Brown dies at 91". Associated Press. สืบค้นเมื่อ January 10, 2019.
  5. ↑ "Harold Brown '45, GSAS'49, Carter Administration Secretary of Defense". Columbia College Today. Spring 2019. สืบค้นเมื่อ June 25, 2021.