TY  - BOOK
AU  - GIFFORD, Ernest M. 
AU  - FOSTER, Adriance S.
TI  - Morphology and Evolution of Vascular Plants 
SN  - 0-7167-1946-0
PY  - 1987///
CY  - New York
PB  - W.H. FREEMAN AND COMPANY
KW  - MORFOLOGIA
KW  - PLANTAS VASCULARES
KW  - EVOLUCION
ER  -