Columbia subject headings:
Nigeria--History--1960-
Presidents--Nigeria--Biography.
Shagari, Shehu Usman Aliyu, 1925-2018.
Harvard subject headings:
Nigeria--History--1960-
Presidents--Nigeria--Biography
Shagari, Shehu Usman Aliyu, 1925-2018
Princeton subject headings:
Nigeria--History--1960-
Presidents--Nigeria--Biography.
Shagari, Shehu Usman Aliyu, 1925-