Alexander, W. (1979). Metals in the service of man. New York: Penguin Books.
Trích dẫn kiểu ChicagoAlexander, William. Metals in the Service of Man. New York: Penguin Books, 1979.
MLA引文Alexander, William. Metals in the Service of Man. New York: Penguin Books, 1979.
警告：这些引文格式不一定是100％准确.