APA

Benns F. L., . (1949). Europe since 1914 in its world setting. New York: F. S. Crofts.

Chicago

Benns Frank Lee, . 1949. Europe since 1914 in its world setting. New York: F. S. Crofts.

Harvard

Benns F. L., . (1949). Europe since 1914 in its world setting. New York: F. S. Crofts.

MLA

Benns Frank Lee, . Europe since 1914 in its world setting. New York: F. S. Crofts. 1949.