United Nations. Department of Economic and Social Affairs. Population Division. (2013). World population prospects 2013. United Nations.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিUnited Nations. Department of Economic and Social Affairs. Population Division. World Population Prospects 2013. New York: United Nations, 2013.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিUnited Nations. Department of Economic and Social Affairs. Population Division. World Population Prospects 2013. United Nations, 2013.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.