00509nam a2200169Ia 4500003000400000005001700004008004100021082001600062100002300078245009200101250001200193260002000205300000800225600003500233600003400268650003700302OSt20150409155942.0140224s9999 xx 000 0 und d a543.43 J3.3 aSnell, Foster Dee. aColorimetric methods of analysis including some turbidimetric and nephelometric methods a3rd ed. aPrincetonc1953 av.3 aSnell Cornelia, T., jt. author aSnell, Chester Arthur., joint aColorimetric analysis,Photometry