Hansen, A. A Guide to Keynes. Mc Graw Hill Book Co..
Cita Chicago (17th ed.)Hansen, A. A Guide to Keynes. New York: Mc Graw Hill Book Co..
Cita MLA (9th ed.)Hansen, A. A Guide to Keynes. Mc Graw Hill Book Co..
Atenció: Aquestes cites poden no estar 100% correctes.