000 00258nam a2200097Ia 4500
100 _aJermy A C & Crabbe J A
245 _aPhylogeny and Classification of the Ferns
260 _bAcdemic Press, London
082 _aI42:11-6/N73/B08886
300 _app 284; 27*19
999 _c29535
_d29535