Columbia subject headings:
Atomic bomb--United States--History.
Nichols, Kenneth D. (Kenneth David), 1907-2000.
Physicists--United States--Biography.
United States. Army. Corps of Engineers. Manhattan District--History.
Harvard subject headings:
Atomic bomb--United States--History
Manhattan Project (U.S.)--History.
Nichols, Kenneth D. (Kenneth David), 1907-2000
Physicists--United States--Biography
United States. Army. Corps of Engineers. Manhattan District--History.
Princeton subject headings:
Atomic bomb--United States--History.
Nichols, Kenneth D. (Kenneth David), 1907-2000.
Physicists--United States--Biography.
United States. Army. Corps of Engineers. Manhattan District--History.