APA

Willkie W. L., Welles S., Wallace H. A. & Hoover H. (1943). Prefaces to peace: a symposium consisting of the following: One world. [New York]: Cooperatively pub. by Simon and Schuster, Doubleday, Doran & company, inc., Reynal & Hitchcock, inc., Columbia university press.

Chicago

Willkie Wendell L, Welles Sumner, Wallace Henry Agard and Hoover Herbert. 1943. Prefaces to peace: a symposium consisting of the following: One world. [New York]: Cooperatively pub. by Simon and Schuster, Doubleday, Doran & company, inc., Reynal & Hitchcock, inc., Columbia university press.

Harvard

Willkie W. L., Welles S., Wallace H. A. and Hoover H. (1943). Prefaces to peace: a symposium consisting of the following: One world. [New York]: Cooperatively pub. by Simon and Schuster, Doubleday, Doran & company, inc., Reynal & Hitchcock, inc., Columbia university press.

MLA

Willkie Wendell L, Welles Sumner, Wallace Henry Agard and Hoover Herbert. Prefaces to peace: a symposium consisting of the following: One world. [New York]: Cooperatively pub. by Simon and Schuster, Doubleday, Doran & company, inc., Reynal & Hitchcock, inc., Columbia university press. 1943.