Cita APA (7th ed.)

Costa, D. L. (2000). Understanding mid-life and older age mortality declines: Evidence from union army veterans. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Costa, Dora L. Understanding Mid-life and Older Age Mortality Declines: Evidence from Union Army Veterans. Cambridge: National Bureau of Economic Research, 2000.

Cita MLA (9th ed.)

Costa, Dora L. Understanding Mid-life and Older Age Mortality Declines: Evidence from Union Army Veterans. National Bureau of Economic Research, 2000.