Gustafson, Axel Ferdinand,  1880- <br/><br/>
Handbook of fertilizers;  their sources, make-up, effects and use, 
by A. F. Gustafson. 
 - 3d ed. 
 - New York,  Orange Judd Pub. Co.,  1939. 
 - 172 p.  illus.  21 cm. 
<br/><br/> "Revised March, 1932; revised and reset January, 1939." 
<br/><br/><label>LCCN: </label>39004009  
<br/><br/><label>LC Class. No.: </label>S633  / .G87 1939 
<br/><br/><label>Dewey Class. No.: </label>631.8