TY  - BOOK
AU  - Cobia, David W.
AU  - Zimmer, David E.
TI  - Sunflower: : production and marketing
T2  - Extension bulletin
PY  - 1978///
CY  - Fargo
PB  - North Dakota Agricultural Experiment Station
KW  - Girasol
KW  - Aspectos económicos
ER  -