TY  - BOOK
AU  - Yeo, P.F.
TI  - Secondary pollen presentation: form, function and evolution
T2  - Plant sytematics and evolution
SN  - 3211824480
U1  - 576.875 21st ed.
PY  - 1993///
CY  - New York
PB  - Springer-Verlag
KW  - Palynology
KW  - Systematics-plant
ER  -