APA

Tschuppik K., . (1930). The Empress Elizabeth of Austria. New York: Brentano’s.

Chicago

Tschuppik Karl, . 1930. The Empress Elizabeth of Austria. New York: Brentano’s.

Harvard

Tschuppik K., . (1930). The Empress Elizabeth of Austria. New York: Brentano’s.

MLA

Tschuppik Karl, . The Empress Elizabeth of Austria. New York: Brentano’s. 1930.