The security demographic : population and civil conflict after the cold war Author(s) Cincotta, Richard P. Engelman, Robert Anastasion, Daniele
Nature's place : human population and the future of biological diversity Author(s) Cincotta, Richard P. Engelman, Robert
Plan and conserve : a source book on linking population and environmental services in communities Author(s) Engelman, Robert
Sustaining water : population and the future of renewable water supplies Author(s) Engelman, Robert LeRoy, Pamela
