Collins, W. J., & Margo, R. A. (1999). Race and home ownership, 1900 to 1990. National Bureau of Economic Research.
Chicago-viite (17. p.)Collins, William J., ja Robert A. Margo. Race and Home Ownership, 1900 to 1990. Cambridge: National Bureau of Economic Research, 1999.
MLA-viite (9. p.)Collins, William J., ja Robert A. Margo. Race and Home Ownership, 1900 to 1990. National Bureau of Economic Research, 1999.
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