pandey , s.n. a text book of botany bryophyta , pteridophyta , gymnosperms and palaeobotany / [[Book] :] s.n. pandey , p. s trivedi. - 10 ed. - new dlhi : Vikas publishing house pvt ltd, 2004. - 613 p. ; 22cm. - 1 . ISBN: 070699616x Dewey Class. No.: 580 National Library of Medicine Call No.: / PT