Micek, A. A. (1951). The apologetics of Martin John Spalding. Catholic University of America Press.
Lua i Stíl Chicago (17ú heag.)Micek, Adam Andrew. The Apologetics of Martin John Spalding. Washington, D.C.: Catholic University of America Press, 1951.
Lua MLA (8ú heag.)Micek, Adam Andrew. The Apologetics of Martin John Spalding. Catholic University of America Press, 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.