Style de citation APA (7e éd.)

(1942). I believe: The personal philosophies of twenty-three eminent men and women of our time. Allen & Unwin.

Style de citation Chicago (17e éd.)

I Believe: The Personal Philosophies of Twenty-three Eminent Men and Women of Our Time. London: Allen & Unwin, 1942.

Style de citation MLA (8e éd.)

I Believe: The Personal Philosophies of Twenty-three Eminent Men and Women of Our Time. Allen & Unwin, 1942.