APA

Young N., Oxford University Press, . (2009). The Oxford international encyclopedia of peace. Oxford: Oxford University Press.

Chicago

Young Nigel, Oxford University Press, . 2009. The Oxford international encyclopedia of peace. Oxford: Oxford University Press.

Harvard

Young N., Oxford University Press, . (2009). The Oxford international encyclopedia of peace. Oxford: Oxford University Press.

MLA

Young Nigel, Oxford University Press, . The Oxford international encyclopedia of peace. Oxford: Oxford University Press. 2009.