O'Kelly, E. (1973). Aid and self-help: A general guide to overseas aid. C. Knight.
Cita Chicago (17th ed.)O'Kelly, Elizabeth. Aid and Self-help: A General Guide to Overseas Aid. London: C. Knight, 1973.
Cita MLA (8th ed.)O'Kelly, Elizabeth. Aid and Self-help: A General Guide to Overseas Aid. C. Knight, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.