Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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