"Watson retires". Prof. James D. Watson's statement on blacks and whites just before his retirement from the post of Chancellor of Cold Spring Harbor Laboratory in New York State, www.theguardian.com. October 25, 2007.
Marshall McLuhan, W. Terrence Gordon, Elena Lamberti, Dominique Scheffel-Dunand (2011). “The Gutenberg Galaxy: The Making of Typographic Man”, p.327, University of Toronto Press