APA引文
Benedictus PP. XVI. (1996). Called to Communion (1 ed.). Ignatius.
芝加哥风格引文
Benedictus PP. XVI. Called to Communion. 1 ed. San Francisco: Ignatius, 1996.
MLA引文
Benedictus PP. XVI. Called to Communion. 1 ed. Ignatius, 1996.
警告：这些引文格式不一定是100％准确.