APA (7th ed.) Citation

Vigdor, J. L., & Ludwig, J. (2007). Segregation and the black-white test score gap. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Vigdor, Jacob L., and Jens Ludwig. Segregation and the Black-white Test Score Gap. Cambridge, Mass: National Bureau of Economic Research, 2007.

MLA (9th ed.) Citation

Vigdor, Jacob L., and Jens Ludwig. Segregation and the Black-white Test Score Gap. National Bureau of Economic Research, 2007.

Warning: These citations may not always be 100% accurate.