APA

De Leeuw H., . (1935). Crossroads of the Caribbean sea. New York: J. Messner, inc.

Chicago

De Leeuw Hendrik, . 1935. Crossroads of the Caribbean sea. New York: J. Messner, inc.

Harvard

De Leeuw H., . (1935). Crossroads of the Caribbean sea. New York: J. Messner, inc.

MLA

De Leeuw Hendrik, . Crossroads of the Caribbean sea. New York: J. Messner, inc. 1935.