APA (7th ed.) Citation
Jacobsen, L. A., Kent, M., Lee, M., & Mather, M. (2011). America's Aging Populatoin. Population Bulletin, 66(1), 1-17.
Chicago Style (17th ed.) Citation
Jacobsen, Linda A., Mary Kent, Marlene Lee, and Mark Mather. "America's Aging Populatoin." Population Bulletin 66, no. 1 (2011): 1-17.
MLA (9th ed.) Citation
Jacobsen, Linda A., et al. "America's Aging Populatoin." Population Bulletin, vol. 66, no. 1, 2011, pp. 1-17.
Warning: These citations may not always be 100% accurate.