APA
Currie J., Cole N, . (1991). Does Participation In Transfer Programs During Pregnancy Improve Birth Weight?. Cambridge, MA: NBER.
Chicago
Currie J, Cole N, . 1991. Does Participation In Transfer Programs During Pregnancy Improve Birth Weight?. Cambridge, MA: NBER.
Harvard
Currie J., Cole N, . (1991). Does Participation In Transfer Programs During Pregnancy Improve Birth Weight?. Cambridge, MA: NBER.
MLA
Currie J, Cole N, . Does Participation In Transfer Programs During Pregnancy Improve Birth Weight?. Cambridge, MA: NBER. 1991.