World handbook of political and social indicators.

MLA

Taylor, Charles, and Michael C Hudson. World Handbook of Political and Social Indicators. 2d ed. New Haven: Yale University Press, 1972.

APA

Taylor, C., & Hudson, M. C. (1972). World handbook of political and social indicators. 2d ed. New Haven: Yale University Press.

Chicago

Taylor, Charles, and Michael C Hudson. World Handbook of Political and Social Indicators. 2d ed. New Haven: Yale University Press, 1972.