Conway, E. 50 Economics Ideas You Really Need to Know. Quercus.
Cita Chicago (17th ed.)Conway, Edmund. 50 Economics Ideas You Really Need to Know. Quercus.
Cita MLA (9th ed.)Conway, Edmund. 50 Economics Ideas You Really Need to Know. Quercus.
Atenció: Aquestes cites poden no estar 100% correctes.