The ethical movement;
its principles and aims,
by Horace J. Bridges, Stanton Coit, G.E. O'Dell, and Harry Snell. Ed. by Horace J. Bridges (Issued by the Union of ethical societies)
Bridges, H. James. (1911). The ethical movement: its principles and aims. London: The Union of ethical societies.
Bridges, Horace James, 1880-. The Ethical Movement: Its Principles And Aims. London: The Union of ethical societies, 1911.
Warning: These citations may not always be complete (especially for serials).