Perrin, D.D. Purification of laboratory chemicals / D.D. Perrin and W.L.F. Arm arego - 3rd ed. - London : Butterworth-Heinemann, 1988. - xii, 391cp. : ill. ; 30 cm. ISBN: 0750623322 Subjects--Topical Terms: Chemicals--Purification Dewey Class. No.: Q 542 PER