Jeffery ,G.H. Vogel`STextbookOf QuantitativeChemicalAnalysis [[Book] /] G.H.Jeffery.[etc]. - 5th. - london : Longman Group UK ltd, 1989. - 877p. ; : ill ; 24cm. ISBN: 0582251672 Dewey Class. No.: 545 National Library of Medicine Call No.: 545 / J V