W. E. B. Du Bois, Frederick Douglass, Booker T. Washington (2012). “Three African-American Classics: Up from Slavery, The Souls of Black Folk and Narrative of the Life of Frederick Douglass”, p.47, Courier Corporation
Foreword to 'The Pathology of Power' by Norman Cousins in 1987. "At a Century's Ending: Reflections 1982-1995". Book by George F. Kennan, p. 118, 1996.