Frakes, Rod V. <br/><br/>
Variety pprotection, by plant patents and other means; pappers presented at the annual 

 - Madisson, Wis. :  Crop Science Society of America,  1969 
 - 54 p. 
 - Technical series  ; 1 .
 - Technical series  ; 1 .
<br/><br/><label>LCCN: </label>42298 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas--Mejoramiento.<br/>Semillas--Legislación.