APA引文

Porter, N. (1889). The Elements of moral science: Theoretical and Practical. New York: Charles Scribner's Sons.

Trích dẫn kiểu Chicago

Porter, Noah. The Elements of Moral Science: Theoretical and Practical. New York: Charles Scribner's Sons, 1889.

MLA引文

Porter, Noah. The Elements of Moral Science: Theoretical and Practical. New York: Charles Scribner's Sons, 1889.

警告：這些引文格式不一定是100％准確.