APA (7 ম সংস্করণ) উদ্ধৃতি

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.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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.