Proceedings 

 - Wageningen, Netherlands :  International Society for Horticultural Science,  1989 
 - 233 p.  ; gráfs. 
 - Acta Horticulturae  ; 256 .
 - Acta Horticulturae  ; 256 .
<br/><br/><label>LCCN: </label>40474 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pera--Congresos.
<br/><br/><label>Dewey Class. No.: </label>634.13  / I58 1988