TY  - BOOK
AU  - Jermy, A.C. & Others
TI  - Phylogeny and Classification of the Ferns
T2  - (Suppl. No.1 to the Botanical J. of the Linnean Soc.V.67,'73
U1  - 587.31 J3P4 
PY  - 1973///
CY  - London
PB  - Academic Press
ER  -