Vasishta, P. C  <br/><br/>
Botany :  for degree students pteridophyta part iv / 
P. C Vasishta 
 - 5th ed. 
 - New Delhi :  S. Chand and Company Pvt. Ltd.,  1993. 
 - ix, 509 p. ;  ill. :  24 cm. 
<br/><br/>It includes bibliographical information and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pteridophyta<br/>Psilophyta<br/>Lycophyta
<br/><br/><label>Dewey Class. No.: </label>587.0968  / VAS