APA
Hurd M. D., Merrill Angela, Mcfadden Daniel & National Bureau Of Economic Research. (1999). Predictors of mortality among the elderly. Cambridge, MA: NBER.
Chicago
Hurd Michael D, Merrill Angela, Mcfadden Daniel and National Bureau Of Economic Research. 1999. Predictors of mortality among the elderly. Cambridge, MA: NBER.
Harvard
Hurd M. D., Merrill Angela, Mcfadden Daniel and National Bureau Of Economic Research. (1999). Predictors of mortality among the elderly. Cambridge, MA: NBER.
MLA
Hurd Michael D, Merrill Angela, Mcfadden Daniel and National Bureau Of Economic Research. Predictors of mortality among the elderly. Cambridge, MA: NBER. 1999.