Psacharopoulos, G. (1991). The economic impact of education: Lessons for policy makers. ICB Press.
Cita Chicago (17th ed.)Psacharopoulos, George. The Economic Impact of Education: Lessons for Policy Makers. San Francisco: ICB Press, 1991.
Cita MLA (8th ed.)Psacharopoulos, George. The Economic Impact of Education: Lessons for Policy Makers. ICB Press, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.