APA (7th ed.) Citation

(1939). World Union of Freethinkers. International Congress 1938. London, September 9-13. Report issued by the organizing committee of the Congress, representing the National secular society, the Rationalist press association, the South place ethical society and the Ethical union. London.

Chicago Style (17th ed.) Citation

World Union of Freethinkers. International Congress 1938. London, September 9-13. Report Issued by the Organizing Committee of the Congress, Representing the National Secular Society, the Rationalist Press Association, the South Place Ethical Society and the Ethical Union. London, 1939.

MLA (8th ed.) Citation

World Union of Freethinkers. International Congress 1938. London, September 9-13. Report Issued by the Organizing Committee of the Congress, Representing the National Secular Society, the Rationalist Press Association, the South Place Ethical Society and the Ethical Union. London, 1939.