Ehret, W. F. (1947). Smith's college chemistry. New York ; London: D. Appleton-Century Co..
Trích dẫn kiểu ChicagoEhret, William F. Smith's College Chemistry. New York ; London: D. Appleton-Century Co., 1947.
MLA引文Ehret, William F. Smith's College Chemistry. New York ; London: D. Appleton-Century Co., 1947.
警告：這些引文格式不一定是100％准確.