TY  - BOOK
AU  - Tryon, A. F.
AU  - Tryon, A. F. Lugardon, B.
TI  - Spores Of The Pteridophyta: Sruface Wall Structure And Diversity Based On Electron Microscope Studies
U1  - I4:19 
PY  - 1991///
CY  - Berlin
PB  - Springer-verlag
KW  - I4:19
ER  -