TY  - BOOK
AU  - Tryon,Rolla Milton
AU  - Tryon,Alice Faber
TI  - Ferns and allied plants with special reference to tropical America
SN  - 038790672X
PY  - 1982///
CY  - New York
PB  - Springer-Verlag
KW  - Helechos
KW  - Zona Tropical
ER  -