Columbia subject headings:
Biographies.
Copying machines--Korea (South)--History.
Executives--Korea (South)--Biography.
Sindo Rik'o--History.
U, Sang-gi, 1919-2002.
Harvard subject headings:
Biographies
Copying machines--Korea (South)--History.
Executives--Korea (South)--Biography
Sindo Rik'o--History.
U, Sang-gi, 1919-2002.
Princeton subject headings: