the World Bank. (2010). Doing Business 2010: Reforming through difficult times. World Bank Group.
Cytowanie według stylu Chicago (wyd. 17)the World Bank. Doing Business 2010: Reforming Through Difficult Times. Washington: World Bank Group, 2010.
Cytowanie według stylu MLA (wyd. 9)the World Bank. Doing Business 2010: Reforming Through Difficult Times. World Bank Group, 2010.