APA

Phillips J., . (1988). The medieval expansion of Europe. New York: Oxford University Press.

Chicago

Phillips J.R.S, . 1988. The medieval expansion of Europe. New York: Oxford University Press.

Harvard

Phillips J., . (1988). The medieval expansion of Europe. New York: Oxford University Press.

MLA

Phillips J.R.S, . The medieval expansion of Europe. New York: Oxford University Press. 1988.