00362nam a2200157Ia 4500003000400000005001700004008004000021020001800061040000700079041001200086082001300098100001600111245003300127260003600160300000800196OSt20230323124150.0210210b1976   xxu||||| |||| 00| 0 eng d  a0 7069 0447 8  cAL  aEnglish  a587 RASI  aRASHID (A).  aIntroduction to pteridophyta  aN DelhibVikas Publishingc1976  a283