United Nations. General Assembly & Perez de Cuellar, J. (1989). External debt crisis and development: Report of the Secretary-General. The Secretariat.
Cita Chicago (17th ed.)United Nations. General Assembly i Javier Perez de Cuellar. External Debt Crisis and Development: Report of the Secretary-General. [New York: The Secretariat, 1989.
Cita MLA (9th ed.)United Nations. General Assembly i Javier Perez de Cuellar. External Debt Crisis and Development: Report of the Secretary-General. The Secretariat, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.