APA Style

Gierke, Otto. (1927). Political Theories of the Middle Age . Cambridge: At The University Press.

Chicago Style

Gierke, Otto. Political Theories of the Middle Age. Cambridge: At The University Press, 1927. Text.

MLA Style

Gierke, Otto. Political Theories of the Middle Age. Cambridge: At The University Press, 1927. Text.

Turabian Style

Gierke, Otto. Political Theories of the Middle Age. Cambridge: At The University Press, 1927. Print.