APA

Kagan F. W., . (1999). The military reforms of Nicholas I. New York: St. Martin's Press.

Chicago

Kagan Frederick W, . 1999. The military reforms of Nicholas I. New York: St. Martin's Press.

Harvard

Kagan F. W., . (1999). The military reforms of Nicholas I. New York: St. Martin's Press.

MLA

Kagan Frederick W, . The military reforms of Nicholas I. New York: St. Martin's Press. 1999.