Catholic Church. Congregatio pro Doctrina Fidei. Instruction on respect for human life in its origin and on the dignity of procreation: Replies to certain questions of the day. St. Paul Editions.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Catholic Church. Congregatio pro Doctrina Fidei. Instruction on Respect for Human Life in Its Origin and on the Dignity of Procreation: Replies to Certain Questions of the Day. Boston: St. Paul Editions.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Catholic Church. Congregatio pro Doctrina Fidei. Instruction on Respect for Human Life in Its Origin and on the Dignity of Procreation: Replies to Certain Questions of the Day. St. Paul Editions.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.