Comber, Norman M. <br/><br/>
An introduction to agricultural chemistry / 
Norman M. Comber, J. S. Willcox and W. N. Townsend. 
 - 2nd ed. 
 - London :  Arnold,  c 1953. 
 - viii, 348 p. :  ill. ;  19 cm. 
<br/><br/> Includes index. 
<br/><br/>319  319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural chemistry.
<br/><br/><label>Dewey Class. No.: </label>630.24 / C732i