Gordon, R. H. (1989). Notes on cash-flow taxation. Country Economics Department, World Bank.
Cita Chicago (17th ed.)Gordon, Roger H. Notes on Cash-flow Taxation. Washington, D.C: Country Economics Department, World Bank, 1989.
Cita MLA (9th ed.)Gordon, Roger H. Notes on Cash-flow Taxation. Country Economics Department, World Bank, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.