Calder, A. B. (Allan Balfour) <br/><br/>
Photometric methods of analysis. 

 - London :  A. Hilger,  [1969] 
<br/><br/>Bibliography: p. 295-305. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photometry.<br/>Spectrophotometry.