APA

Tours G. d., . (1965). The history of the Franks. New York: Octagon Books, Inc.

Chicago

Tours Gregoire de, . 1965. The history of the Franks. New York: Octagon Books, Inc.

Harvard

Tours G. d., . (1965). The history of the Franks. New York: Octagon Books, Inc.

MLA

Tours Gregoire de, . The history of the Franks. New York: Octagon Books, Inc. 1965.