Denisen Ervin L. <br/><br/>
Laboratory Manual in Horticulture 

 - USA  Lowa State University Press  1962 
<br/><br/><label>ISBN: </label>0-8138-0770-0 
<br/><br/><label>LC Class. No.: </label>635.028/DEN  / 7 
<br/><br/><label>Dewey Class. No.: </label>635.028/DEN  / 7