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Dyfyniad Arddull ChicagoCincotta, Richard P., Robert Engelman, and Daniele Anastasion. The Security Demographic: Population and Civil Conflict After the Cold War. Washington: Population Action International, 2003.
Dyfyniad MLACincotta, Richard P., et al. The Security Demographic: Population and Civil Conflict After the Cold War. Washington: Population Action International, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.