APA引文

Klemm, F. (1991). A history of Western technology. London: Iowa State University.

Trích dẫn kiểu Chicago

Klemm, Friedrich. A History of Western Technology. London: Iowa State University, 1991.

MLA引文

Klemm, Friedrich. A History of Western Technology. London: Iowa State University, 1991.

警告：這些引文格式不一定是100％准確.