APA (7th ed.) Citation

Nicolson, H. (1969). The Congress of Vienna: A study in Allied Unity, 1812-1822. Viking.

Chicago Style (17th ed.) Citation

Nicolson, Harold. The Congress of Vienna: A Study in Allied Unity, 1812-1822. New York: Viking, 1969.

MLA (9th ed.) Citation

Nicolson, Harold. The Congress of Vienna: A Study in Allied Unity, 1812-1822. Viking, 1969.

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