Cita APA

(2000). Aridity zones and dryland populations: An assessment of population levels in the world's drylands. New York, New York: United Nations Development Programme.

Citación estilo Chicago

Aridity Zones and Dryland Populations: An Assessment of Population Levels in the World's Drylands. New York, New York: United Nations Development Programme, 2000.

Cita MLA

Aridity Zones and Dryland Populations: An Assessment of Population Levels in the World's Drylands. New York, New York: United Nations Development Programme, 2000.