Applied tree improvement in Central States  : proceeding 

 - Wooster, Ohio. :  Agricultural Research and Development Center,  1967 
 - 53 p.  : ilus. 
<br/><br/><label>LCCN: </label>18268 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Árboles--Mejoramiento.