Mitchell, R. L. <br/><br/>
The spectrographic analysis of soils, plants and related materials / 
R. L. Mitchell.  
 - Bucks, England :  Commonwealth Agricultural Bureaux,  1956. 
 - iv, 183 p. :  ill. ;  24 cm. 
 - Technical communication, No. 44. .
<br/><br/>Bibliography : p. 144-171. 
<br/><br/>328  328 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Techniques, equipment & materials.<br/>Spectrographic Analysis.
<br/><br/><label>Dewey Class. No.: </label>631.4 / M695s