TY  - BOOK
AU  - Jermy, A.C.
TI  - The Phylogeny and classification of the ferns: A.C. Jermy, J.A. Crabbe andB.A. Thomas
SN  - 012-3850509.
U1  - 587.31012, 
PY  - 1973///
CY  - London
PB  - Academic press
ER  -