APA

(1993). Social indicators of development, 1993. Baltimore: Published for the World Bank, The Johns Hopkins University Press.

Chicago

1993. Social indicators of development, 1993. Baltimore: Published for the World Bank, The Johns Hopkins University Press.

Harvard

(1993). Social indicators of development, 1993. Baltimore: Published for the World Bank, The Johns Hopkins University Press.

MLA

Social indicators of development, 1993. Baltimore: Published for the World Bank, The Johns Hopkins University Press. 1993.