APA

Flack M., Barnum J. H., . (19661946). The boats on the river. New York: The Viking Press.

Chicago

Flack Marjorie, Barnum Jay Hyde, . 19661946. The boats on the river. New York: The Viking Press.

Harvard

Flack M., Barnum J. H., . (19661946). The boats on the river. New York: The Viking Press.

MLA

Flack Marjorie, Barnum Jay Hyde, . The boats on the river. New York: The Viking Press. 19661946.