TY  - BOOK
AU  - Foster,Adriance S.
AU  -  Ernest Gifford
TI  - Comparative morphology of vascular plants
SN  - 0-7167-0712-8
AV  - QK641.F6 
PY  - 1974///
CY  - San Fransisco
PB  - W. H. Freeman and Company
KW  - Botany
N1  - Includes bibliographical references
ER  -