APA引文

Ehret, W. F. (1947). Smith's college chemistry. New York ; London: D. Appleton-Century Co..

Trích dẫn kiểu Chicago

Ehret, 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.