APA

Leavell C. S., . (1924). The successful Sunday school at work. New York: George H. Doran company.

Chicago

Leavell Clarence Stanley, . 1924. The successful Sunday school at work. New York: George H. Doran company.

Harvard

Leavell C. S., . (1924). The successful Sunday school at work. New York: George H. Doran company.

MLA

Leavell Clarence Stanley, . The successful Sunday school at work. New York: George H. Doran company. 1924.