Cita APA (7th ed.)

Freeman, R. B., & Lindauer, D. L. (1999). Why not African. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Freeman, Richard B., i David L. Lindauer. Why Not African. Cambridge: National Bureau of Economic Research, 1999.

Cita MLA (9th ed.)

Freeman, Richard B., i David L. Lindauer. Why Not African. National Bureau of Economic Research, 1999.