TY  - BOOK
AU  - Viola,Herman J.
AU  - Margolis,Carolyn
TI  - Seeds of change: a quincentennial commemoration 
SN  - 1560980362
PY  - 1991///
CY  - Washington, DC
PB  - Smithsonian Institution Press
KW  - Ethnobotany
KW  - North America
KW  - Indians of North America
KW  - Exhibitions
KW  - America
KW  - Discovery and exploration
KW  - History
ER  -