Columbia subject headings:
Colombia--Politics and government--20th century--Biography.
Guerrillas--Colombia--Biography.
Pérez Martínez, Manuel.
Harvard subject headings:
Colombia--Politics and government--20th century.
Ejército de Liberación Nacional (Colombia)
Guerrillas--Colombia--Biography
Guerrillas--Colombia--History
Pérez Martínez, Manuel.
Princeton subject headings: