00266nam a22001097a 4500003000400000008004100004082001400045100001700059245001700076260005500093300000800148OSt230531b        |||||||| |||| 00| 0 eng d  a588bP12I  aN.S. Parihar  aPteridophyte  aCentral Book Dept. AlahabadbKamlalaya, Muzzc1967  a331