Das, J.P. <br/><br/>
Plant systematics  a phylogenetic approach 
Walter S. Judd .. [et al]. 
 - Sunderland  Sianuer Associates  1999 
 - xiv, 464p., ill.; 30cm. 
<br/><br/><label>ISBN: </label>0-87893-404-9. 
<br/><br/><label>Dewey Class. No.: </label>580.12  / P62P