Armarego, W., & Perrin, D. (1997). Purification of laboratory chemicals (4th ed.). Butterworth - Heineman.
Dyfyniad Arddull ChicagoArmarego, W.L.F, and D.D Perrin. Purification of Laboratory Chemicals. 4th ed. Oxford: Butterworth - Heineman, 1997.
Dyfyniad MLAArmarego, W.L.F, and D.D Perrin. Purification of Laboratory Chemicals. 4th ed. Butterworth - Heineman, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.