Blackburn, John Stead,  1882- <br/><br/>
Organic husbandry :  a symposium. 

 - London :  The Biotechnic Press, 1949. 
 - 160 p. ;  23 cm. 
<br/><br/> "Compiled and issued by John S. Blackburn."-- p. 160.  Imprint stamped on t.p. 
<br/><br/>Bibliography: 149-160. 
<br/><br/><label>LCCN: </label>agr50000062  
<br/><br/><label>LC Class. No.: </label>S661  / .B6