Cita APA (7th ed.)

Asian Development Bank, Environment Division. (1997). Megacities: Environmental challenges in the 21st century. Asian Development Bank.

Cita Chicago (17th ed.)

Asian Development Bank, Environment Division. Megacities: Environmental Challenges in the 21st Century. Manila: Asian Development Bank, 1997.

Cita MLA (9th ed.)

Asian Development Bank, Environment Division. Megacities: Environmental Challenges in the 21st Century. Asian Development Bank, 1997.