Pyensan, Louis L. <br/><br/>
Laboratory manual for Enthanology and plant pathology 

 -  Avi Pub Corp  USA  1981 
 - 155pg  PB 
 - Laboratory manual for Enthanology and plant pathology .
<br/><br/><br/>En 
<br/><br/><label>Subjects--Personal Names: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>632  /  PYE