APA

Kagan D., Ozment S. E., . (1979). The Western heritage. New York: Macmillan.

Chicago

Kagan Donald, Ozment Steven E, . 1979. The Western heritage. New York: Macmillan.

Harvard

Kagan D., Ozment S. E., . (1979). The Western heritage. New York: Macmillan.

MLA

Kagan Donald, Ozment Steven E, . The Western heritage. New York: Macmillan. 1979.