Proceedings... 

 - Portland, Oregon :  Timber Press,  1992 
 - 254 p. 
<br/><br/><label>LCCN: </label>40645 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Horticultura--Aspectos sociales.<br/>Horticultura--Congresos.
<br/><br/><label>Dewey Class. No.: </label>635.063  / R6