APA (7th ed.) Citation

Cohen, R. B., Polk, C., & Vuolteenaho, T. (2001). The value spread. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Cohen, Randolph B., Christopher Polk, and Tuomo Vuolteenaho. The Value Spread. Cambridge, MA: National Bureau of Economic Research, 2001.

MLA (9th ed.) Citation

Cohen, Randolph B., et al. The Value Spread. National Bureau of Economic Research, 2001.