Bound, J., & Solon, G. (1998). Double trouble on the value of twins-based estimation of the return to schooling. National Bureau of Economic Research.
Chicago Style (17th ed.) CitationBound, John, and Gary Solon. Double Trouble on the Value of Twins-based Estimation of the Return to Schooling. Cambridge: National Bureau of Economic Research, 1998.
MLA (9th ed.) CitationBound, John, and Gary Solon. Double Trouble on the Value of Twins-based Estimation of the Return to Schooling. National Bureau of Economic Research, 1998.
Warning: These citations may not always be 100% accurate.