APA

Clason G. S., . (1955). The richest man in Babylon. New York: Hawthorn Books.

Chicago

Clason George Samuel, . 1955. The richest man in Babylon. New York: Hawthorn Books.

Harvard

Clason G. S., . (1955). The richest man in Babylon. New York: Hawthorn Books.

MLA

Clason George Samuel, . The richest man in Babylon. New York: Hawthorn Books. 1955.