APA
Urdal H., Hoelscher Kristian & World Bank. (2009). Urban youth bulges and social disorder: An empirical study o. Washington: World Bank.
Chicago
Urdal Henrik, Hoelscher Kristian and World Bank. 2009. Urban youth bulges and social disorder: An empirical study o. Washington: World Bank.
Harvard
Urdal H., Hoelscher Kristian and World Bank. (2009). Urban youth bulges and social disorder: An empirical study o. Washington: World Bank.
MLA
Urdal Henrik, Hoelscher Kristian and World Bank. Urban youth bulges and social disorder: An empirical study o. Washington: World Bank. 2009.