000 00289nam a22001097a 4500
020 _a9789393168856
082 _22nd ed.
_a587 SHA.T
100 _aSharma O.P.
245 _aTextbook of pteridophyta /
260 _aNew Delhi:
_bScientific international Pvt. Ltd.,
_cc2024.
942 _2ddc
_cBK
999 _c732572
_d732572