Kolthoff.I.M.and E.B.Sandell,Text Gook of quantitative inorganic analysis.Fourth Edition.The Macmillan Company London,1969,842-850.
|
Enviromental Protection Agency,U.S.Quality Criteria For Water,U.S Goverment Printing Office 1918,21,3-214.
|
大岛泰雄编,水产养殖ハドプフツク,水产社,1969,444.
|