John A. McCoy, A Clear and Quiet Conscience : The Archbishop Who Challenged a Pope, a President, and a Church, Orbis Books, , 288 p. (ISBN978-1-60833-545-9, lire en ligne).
Frank D. Almade, « 1978: With John Paul II, a New Era Began for the Church », Pittsburgh Catholic, (lire en ligne, consulté le ).
post-gazette.com
(en) Peter Smith, « The path of Cardinal Donald Wuerl: From Pittsburgh priest to Washington archbishop », Pittsburgh Post-Gazette, (lire en ligne, consulté le ).