The Blackwell companion to Catholicism
MLA
Buckley, James Joseph, Frederick Christian Bauerschmidt, and Trent Pomplun. The Blackwell Companion to Catholicism. Blackwell Companions to Religion. Malden, MA: Blackwell Pub., 2007
APA, 7th edition
Buckley, J. Joseph, Bauerschmidt, F. Christian, & Pomplun, T. (2007). The Blackwell companion to Catholicism. Blackwell companions to religion. Malden, MA: Blackwell Pub
Chicago, 17th edition
Buckley, James Joseph, Frederick Christian Bauerschmidt, and Trent Pomplun. The Blackwell companion to Catholicism. Blackwell companions to religion. Malden, MA: Blackwell Pub., 2007