Boerner, E. G. <br/><br/>
A modified boerner sampler  / 
by E. G. Boerner and E. H. Ropes 
 - Washington  :   Department of Agriculture 
 - 8 p. 
 - EUA. Dep. of Agri. Bull.; 857 .
<br/><br/><label>LCCN: </label>203292 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura -- Aparatos e instrumentos  Cereales -- Selección masal