Asian Development Bank, Environment Division. (1997). Megacities: Environmental challenges in the 21st century. Asian Development Bank.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAsian Development Bank, Environment Division. Megacities: Environmental Challenges in the 21st Century. Manila: Asian Development Bank, 1997.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিAsian Development Bank, Environment Division. Megacities: Environmental Challenges in the 21st Century. Asian Development Bank, 1997.
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