Columbia subject headings:
Harvard subject headings:
Betancur, Belisario, 1923-2018
Colombia--Politics and government--1974-
Guerrillas--Colombia
M-19 (Colombian guerrilla group)
Negotiation.
Princeton subject headings:
Colombia--Politics and government--1974-
Ejército Popular de Liberación (Colombia)
Guerrillas--Colombia.
M-19 (Colombian guerrilla group)