00449nam a2200145Ia 4500008004100000082001800041100002300059245006700082250001200149260002000161300001600181600003500197600003400232650003700266140224s9999 xx 000 0 und d a543.43 K.1.3A aSnell, Foster Dee. aColorimetric methods of analysis including photometric methods a3rd ed. aPrincetonc1961 av.3A, 576p. aSnell Cornelia, T., jt. author aSnell, Chester Arthur., joint aColorimetric analysis,Photometry