APA
Poterba J. M., Samwick Andrew A & National Bureau Of Economic Research. (1997). Household portfolio allocation over the life cycle. Cambridge, MA: NBER.
Chicago
Poterba James M, Samwick Andrew A and National Bureau Of Economic Research. 1997. Household portfolio allocation over the life cycle. Cambridge, MA: NBER.
Harvard
Poterba J. M., Samwick Andrew A and National Bureau Of Economic Research. (1997). Household portfolio allocation over the life cycle. Cambridge, MA: NBER.
MLA
Poterba James M, Samwick Andrew A and National Bureau Of Economic Research. Household portfolio allocation over the life cycle. Cambridge, MA: NBER. 1997.