Hawley, G. G. (1971). condensed chemical dictionary (8th ed.). Van Nostrand Reinhold Company.
Dyfyniad Arddull ChicagoHawley, Gessner G. Condensed Chemical Dictionary. 8th ed. New York: Van Nostrand Reinhold Company, 1971.
Dyfyniad MLAHawley, Gessner G. Condensed Chemical Dictionary. 8th ed. Van Nostrand Reinhold Company, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.