Cox, H. (1988). The silencing of Leonardo Boff: The Vatican and the future of world Christianity. Meyer-Stone Books.
Lua i Stíl Chicago (17ú heag.)Cox, Harvey. The Silencing of Leonardo Boff: The Vatican and the Future of World Christianity. Oak Park, IL: Meyer-Stone Books, 1988.
Lua MLA (8ú heag.)Cox, Harvey. The Silencing of Leonardo Boff: The Vatican and the Future of World Christianity. Meyer-Stone Books, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.