PNG, I. (2013). Managerial Economics - 4th Edition. Routledge Taylor & Francis Group.
Cita Chicago (17th ed.)PNG, Ivan. Managerial Economics - 4th Edition. London: Routledge Taylor & Francis Group, 2013.
Cita MLA (9th ed.)PNG, Ivan. Managerial Economics - 4th Edition. Routledge Taylor & Francis Group, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.