Dorian, A. (1964). Elsevier's Dictionary of Industrial Chemistry in Six Languages, English, American, French, Spanish, Italian, Dutch. Elsevier.
Dyfyniad Arddull ChicagoDorian, A.F. Elsevier's Dictionary of Industrial Chemistry in Six Languages, English, American, French, Spanish, Italian, Dutch. London: Elsevier, 1964.
Dyfyniad MLADorian, A.F. Elsevier's Dictionary of Industrial Chemistry in Six Languages, English, American, French, Spanish, Italian, Dutch. Elsevier, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.