Wargo, Phillip M. <br/><br/>
Root vitality and decline of red spruce 

 - Hamden :  Ecomed,  1993 
 - 134 p.  : ilus. ; gráfs. 
 - Contributiones biologiae arborum  ; 4 .
 - Contributiones biologiae arborum  ; 4 .
<br/><br/><label>LCCN: </label>61953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Picea rubens.<br/>Raíces
<br/><br/><label>Dewey Class. No.: </label>634.9752  / W3