Pandey, S.N. <br/><br/>
A Textbook of botany  bryophyta, pteriodophyta, gymnosperms and palebotany 
S.N. Pandey, S.P. Misra and; P.S. Trivedi. 
 - 2nd rev. ed. 
 - New Delhi  Vikas  1994 
 - viii, 495p., ill.; 24cm. 
<br/><br/><label>Dewey Class. No.: </label>581  / P14T