APA (7th ed.) Citation

Collins, W. J., & Thomasson, M. A. (2002). Exploring the racial gap in infant mortality rates, 1920 - 1970. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Collins, William J., and Melissa A. Thomasson. Exploring the Racial Gap in Infant Mortality Rates, 1920 - 1970. Cambridge, Mass: National Bureau of Economic Research, 2002.

MLA (9th ed.) Citation

Collins, William J., and Melissa A. Thomasson. Exploring the Racial Gap in Infant Mortality Rates, 1920 - 1970. National Bureau of Economic Research, 2002.