Gannon, T. M. (1987). The Catholic challenge to the American economy: Reflections on the U.S. bishops' pastoral letter on Catholic social teaching and the U.S. economy. Macmillan.
Lua i Stíl Chicago (17ú heag.)Gannon, Thomas M. The Catholic Challenge to the American Economy: Reflections on the U.S. Bishops' Pastoral Letter on Catholic Social Teaching and the U.S. Economy. New York: Macmillan, 1987.
Lua MLA (9ú heag.)Gannon, Thomas M. The Catholic Challenge to the American Economy: Reflections on the U.S. Bishops' Pastoral Letter on Catholic Social Teaching and the U.S. Economy. Macmillan, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.