Jeffery, G.H. . Vogel`s textbook of quantitative chemical analysis / by G.H. Jeffery... et. al. . - 5th ed / - Delhi : Addison Wesley Longman(Singapore) Pte Ltd. Indian , 1999 - xxix, 877p : ISBN: 81-7808-236-5 Subjects--Topical Terms: Chemistry Dewey Class. No.: E:34 / N9;1