Cita APA (7a ed.)

Jackson, R., & Howe, N. (2008). The graying of the great powers: Demography and geopolitics in the 21st century. Center for Strategic and International Studies.

Cita Chicago Style (17a ed.)

Jackson, Richard, y Neil Howe. The Graying of the Great Powers: Demography and Geopolitics in the 21st Century. Washington, D.C.: Center for Strategic and International Studies, 2008.

Cita MLA (9a ed.)

Jackson, Richard, y Neil Howe. The Graying of the Great Powers: Demography and Geopolitics in the 21st Century. Center for Strategic and International Studies, 2008.