Photometric and fluorometric methods of analysis : metals / Foster Dee Snell. Snell, Foster Dee, 1898- Metals Analysis. Photometry. Fluorimetry. QD132 .S53 546.31 SNP Includes bibliographical references and index. New York : Wiley, c1978. c1978. 1978 Text 2 v. (xi, 2167 p.) : eng