International Congress of Free Christians and Other Religious Liberals & Bowie, W. C. (1901). Liberal religious thought at the beginning of the twentieth century: Addresses and papers at the International council of Unitarian and other liberal religious thinkers and workers, held in London, May, 1901. P. Green.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Congress of Free Christians and Other Religious Liberals و W. Copeland Bowie. Liberal Religious Thought at the Beginning of the Twentieth Century: Addresses and Papers at the International Council of Unitarian and Other Liberal Religious Thinkers and Workers, Held in London, May, 1901. London: P. Green, 1901.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Congress of Free Christians and Other Religious Liberals و W. Copeland Bowie. Liberal Religious Thought at the Beginning of the Twentieth Century: Addresses and Papers at the International Council of Unitarian and Other Liberal Religious Thinkers and Workers, Held in London, May, 1901. P. Green, 1901.