Cita APA (7th ed.)
Lobley, D. (1983). Economics: A new introduction. John Murray.
Cita Chicago (17th ed.)
Lobley, Derek. Economics: A New Introduction. London: John Murray, 1983.
Cita MLA (9th ed.)
Lobley, Derek. Economics: A New Introduction. John Murray, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.