MLA

Hughes, Stewart H. Contemporary Europe : a History. 6e ed. Englewood Cliffs, N.J.: Prentice-Hall, 1965.

APA

Hughes, S. H. (1965). Contemporary Europe : a history. 6e ed. Englewood Cliffs, N.J.: Prentice-Hall.

Chicago

Hughes, Stewart H. Contemporary Europe: A History. 6e ed. Englewood Cliffs, N.J.: Prentice-Hall, 1965.