TY  - BOOK
AU  - Caldwell, Billy E.
AU  - Schillinger, J. A.
TI  - Intellectual property rights associated with plants
T2  - ASA. Special publication
U1  - 581.150272 
PY  - 1989///
CY  - Madison, Wis.
PB  - Crop Science Society of America
KW  - Plantas
KW  - Patentes
ER  -