Gift to the church and the world Fifty Years of Joseph Ratzinger's Introduction to Christianity von Voderholzer, Rudolf 1959-, Schenk, Richard 1951-, Rowland, Tracey 1963-, O'Regan, Cyril 1952-, Pidel, Aaron 1978-, Cavadini, Catherine, Pagliardini, Anthony J., Sciglitano, Anthony C. Jr, Imbelli, Robert P. 1939-, Murphy, Francesca Aran 1960-, Gardner, Patrick X., DeLorenzo, Leonard J., O'Malley, Timothy Patrick, Sedmak, Clemens 1971-, Newsome Martin, Jennifer