Knowles, Frank <br/><br/>
A Practical Course in Agricultural Chemistry 

 - London:  Macmillan and co.,  1950. 
 - 216p.;  22cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture and related technologies
<br/><br/><label>Dewey Class. No.: </label>630.24  / KNO