1. Raymond Aron, Paix et Guerre entre les nations (Paris: Calmann-Lévy, 1962) p. 82.
2. Arnold Wolfers, `National Security as an “Ambiguous Symbol” ’, Political Science Quarterly, vol. 64, no. 4, December 1952, pp. 481–502.
3. Robert McNamara, The Essence of Security: Reflections in Office (New York: Harper & Row, 1968) p. 49.
4. Comisión Sur, Desafío al Sur (Mexico: Fondo de Cultura Ecándmica, 1991) pp. 13–14.
5. Juan Bosch, De Cristábal Colon a Fidel Castro: el Caribe, frontera imperial (Madrid: Ediciones Alfaguara, 1970) p. 12.