Cita APA (7th ed.)

Postel, S. (1992). Last oasis: Facing water scarcity. Norton.

Cita Chicago (17th ed.)

Postel, Sandra. Last Oasis: Facing Water Scarcity. New York: Norton, 1992.

Cita MLA (9th ed.)

Postel, Sandra. Last Oasis: Facing Water Scarcity. Norton, 1992.