Sivarajan, V. V. <br/><br/>
Introduction to the principles of plant taxonomy / 
V. V. Sivarajan ; edited by N. K. P. Robson. 
 - 2nd ed. 
 - Cambridge :  Cambridge University Press,  1991. 
 - 292 p. ;  24 cm. 
<br/><br/>p. 223-272. 
<br/><br/><label>ISBN: </label>0521355877  RM208.15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Classification.