Cita APA (7a ed.)

Collins, W. J., & Margo, R. A. (1999). Race and home ownership, 1900 to 1990. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Collins, William J., y Robert Andrew Margo. Race and Home Ownership, 1900 to 1990. Cambridge, MA: National Bureau of Economic Research, 1999.

Cita MLA (9a ed.)

Collins, William J., y Robert Andrew Margo. Race and Home Ownership, 1900 to 1990. National Bureau of Economic Research, 1999.