Gustafson, Axel Ferdinand,  1880- <br/><br/>
Handbook of fertilisers :  their sources, make-up, effects and use / 
by A. F. Gustafson. 
 - 3rd ed. 
 - New York :  Orange Judd ,  1939. 
 - 172 p. :  ill. ;  21 cm. 
<br/><br/> Revised March 1932; revised and reset January 1939. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilisers and manures.
<br/><br/><label>Dewey Class. No.: </label>631.8