APA
Gropper M. J., National Bureau of Economic Research & Kuhnen C. M. (2021). Wealth and insurance choices. Cambridge: NBER.
Chicago
Gropper Michael J, National Bureau of Economic Research and Kuhnen Camelia M. 2021. Wealth and insurance choices. Cambridge: NBER.
Harvard
Gropper M. J., National Bureau of Economic Research and Kuhnen C. M. (2021). Wealth and insurance choices. Cambridge: NBER.
MLA
Gropper Michael J, National Bureau of Economic Research and Kuhnen Camelia M. Wealth and insurance choices. Cambridge: NBER. 2021.