Comber, Norman M., Willcox, J.S. and Townsend, W.N. <br/><br/>
An Introduction to Agricultural Chemistry 

 - 2 
 - London  Edward Arnold (Publishers) Ltd.  1947 
 - 348 
<br/><br/><label>Subjects--Personal Names: </label> Biotechnology 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biotechnology