APA Edition Citation

Gierke, O. (1959). Political theories of the middle age / by O. Gierke. Beacon Press.

Chicago Edition Citation

Gierke, O. Political Theories of the Middle Age / by O. Gierke. Beacon Press, 1959.

MLA Edition Citation

Gierke, O. Political Theories of the Middle Age / by O. Gierke. Beacon Press, 1959.

Warning: These citations may not always be 100% accurate.