De Levie, R. (1997). Principles of quantitative chemical analysis. McGraw-Hill.
Dyfyniad Arddull ChicagoDe Levie, Robert. Principles of Quantitative Chemical Analysis. New York: McGraw-Hill, 1997.
Dyfyniad MLADe Levie, Robert. Principles of Quantitative Chemical Analysis. McGraw-Hill, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.