Ehret, W. F. (1947). Smith's college chemistry. New York ; London: D. Appleton-Century Co..
Dyfyniad Arddull ChicagoEhret, William F. Smith's College Chemistry. New York ; London: D. Appleton-Century Co., 1947.
Dyfyniad MLAEhret, William F. Smith's College Chemistry. New York ; London: D. Appleton-Century Co., 1947.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.