Cullen, J. <br/><br/>
The identification of flowering plant families :   including a key to those native and cultivated in north temperate regions/ 
by J.Cullen 
 - 4th ed. 
 -  Cambridge University Press,  1997. 
 - xii,215p. 
<br/><br/> Includes bibliographical references and indx. 
<br/><br/><label>ISBN: </label>0521585503 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Angiosperms -Identification<br/>Flowers-Identification
<br/><br/><label>Dewey Class. No.: </label>582.13	  / CUL/I