TY  - BOOK
AU  - Yeo, P.F.
TI  - Secondary pollen presentation : form, function and evolution
T2  - Plant systematics and evolution; supplementum; no.6
SN  - 3211824480
U1  - 582.0463 
PY  - 1993///
CY  - New York
PB  - Springer-Verlag
KW  - Polynalogy
KW  - Pollination
ER  -