Columbia subject headings:
Harvard subject headings:
Marcos, Ferdinand E. (Ferdinand Edralin), 1917-1989
Philippines--Politics and government--1946-1973.
Philippines--Politics and government--1973-
Philippines--Politics and government--1973-1986.
Princeton subject headings:
Marcos, Ferdinand E. (Ferdinand Edralin), 1917-1989.
Philippines--Politics and government--1946-1973.
Philippines--Politics and government--1973-.