APA

Power E. E., . (1941). The wool trade in English medieval history. London: Oxford University Press.

Chicago

Power Eileen Edna, . 1941. The wool trade in English medieval history. London: Oxford University Press.

Harvard

Power E. E., . (1941). The wool trade in English medieval history. London: Oxford University Press.

MLA

Power Eileen Edna, . The wool trade in English medieval history. London: Oxford University Press. 1941.