Parsons, Frances Theodora . <br/><br/>
How to Know the Ferns /  Textual Documents 
Frances Theodora Parsons. 
 - 1st ed. / 
 - Jaipur :  Arihant Publishers ,  nd. 
 - ix,215p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Botany Ferns G-Botany 
<br/><br/><label>Dewey Class. No.: </label>587.31  / Pa 21 Fe