Cita APA (7th ed.)
Sachs, J. D., & Ki-moon, B. The Age of Sustainable Development. Columbia University.
Cita Chicago (17th ed.)
Sachs, Jeffrey D., i Ban Ki-moon. The Age of Sustainable Development. Nueva York, EUA: Columbia University.
Cita MLA (9th ed.)
Sachs, Jeffrey D., i Ban Ki-moon. The Age of Sustainable Development. Columbia University.
Atenció: Aquestes cites poden no estar 100% correctes.