000 00293nam a2200121Ia 4500
008 170101s1966 xx 000 0 und d
082 _a587 CHO
100 _aChopra G. L.
245 2 _aA Class Book of Ptridophyta
260 _bHari Singh & Bros
_c1966
300 _a231 p.
942 _2ddc
_cB
999 _c279116
_d279116