Petrides, George A. <br/><br/>
A field guide to western trees  : western United States and Canada 

 - Boston, Mass. :  Houghton Mifflin,  1992 
 - 308 p.  : ilus. 
 - The Peterson fiel guide series  ; 44 .
 - The Peterson fiel guide series  ; 44 .
<br/><br/> 59-219 
<br/><br/><label>LCCN: </label>5827 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Árboles--Canada.<br/>Árboles--Clasificación.<br/>Árboles--E.U.A.
<br/><br/><label>Dewey Class. No.: </label>582.16  / P4