APA

Carr E. H., . (1964). The twenty years' crisis, 1919-1939: an introduction to the study of international relations. New York: s.n.

Chicago

Carr Edward Hallett, . 1964. The twenty years' crisis, 1919-1939: an introduction to the study of international relations. New York: s.n.

Harvard

Carr E. H., . (1964). The twenty years' crisis, 1919-1939: an introduction to the study of international relations. New York: s.n.

MLA

Carr Edward Hallett, . The twenty years' crisis, 1919-1939: an introduction to the study of international relations. New York: s.n. 1964.