Griffiths, D.J.  <br/><br/>
Principles of herbage seed production  

 - Aberystwyth  Welsh Plant Breeding Station  1967 
 - 135p.  24cm 
 - Technical bulletin  No. 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field and plantation crops<br/>Forage crops
<br/><br/><label>Dewey Class. No.: </label>633.2  / PRI