Cita APA (7a ed.)
Postel, S. Pillar of sand: Can the irrigation miracle last? Norton.
Cita estilo Chicago (17a ed.)
Postel, Sandra. Pillar of Sand: Can the Irrigation Miracle Last? Nueva York, EUA: Norton.
Cita MLA (9a ed.)
Postel, Sandra. Pillar of Sand: Can the Irrigation Miracle Last? Norton.
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