APA
Jayachandran S., Smith Kimberly V, Lleras Muney Adriana & National Bureau Of Economic Research. (2009). Modern medicine and the 20th century decline in mortality: E. Cambridge: NBER.
Chicago
Jayachandran Seema, Smith Kimberly V, Lleras Muney Adriana and National Bureau Of Economic Research. 2009. Modern medicine and the 20th century decline in mortality: E. Cambridge: NBER.
Harvard
Jayachandran S., Smith Kimberly V, Lleras Muney Adriana and National Bureau Of Economic Research. (2009). Modern medicine and the 20th century decline in mortality: E. Cambridge: NBER.
MLA
Jayachandran Seema, Smith Kimberly V, Lleras Muney Adriana and National Bureau Of Economic Research. Modern medicine and the 20th century decline in mortality: E. Cambridge: NBER. 2009.