Cita APA (7a ed.)

Clark, W. H. (1951). The Oxford Group: Its history and significance. Bookman Associates.

Cita Chicago Style (17a ed.)

Clark, Walter Houston. The Oxford Group: Its History and Significance. New York: Bookman Associates, 1951.

Cita MLA (9a ed.)

Clark, Walter Houston. The Oxford Group: Its History and Significance. Bookman Associates, 1951.