KIESSELBACH, T. A. <br/><br/>
Progressive development and seasonal variations of the corn crop / 
T. A. Kiesselbach. 
 -- Nebraska :   University, College of Agriculture,   1950 
 - 49p.  gráf. -- 
 (Research Bulletin  ; 166).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura - Investigación<br/>Trigo - Cultivo
<br/><br/><label>Universal Decimal Class. No.: </label>633.1-52