APA

May R. [., . (1975). The courage to create. New York: Bantam Books.

Chicago

May Rollo [F], . 1975. The courage to create. New York: Bantam Books.

Harvard

May R. [., . (1975). The courage to create. New York: Bantam Books.

MLA

May Rollo [F], . The courage to create. New York: Bantam Books. 1975.