APA

Herlihy D., . (1998). The History of Feudalism. New York: Humanity Books.

Chicago

Herlihy David, . 1998. The History of Feudalism. New York: Humanity Books.

Harvard

Herlihy D., . (1998). The History of Feudalism. New York: Humanity Books.

MLA

Herlihy David, . The History of Feudalism. New York: Humanity Books. 1998.