Emerson, W. (1983). Guide to the Chemical Industry: Technology, R& D, Marketing and Employment. John Wiley.
Dyfyniad Arddull ChicagoEmerson, William.S. Guide to the Chemical Industry: Technology, R& D, Marketing and Employment. New York: John Wiley, 1983.
Dyfyniad MLAEmerson, William.S. Guide to the Chemical Industry: Technology, R& D, Marketing and Employment. John Wiley, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.