TY  - BOOK
ED  - National Research Council. Washington. Subcommittee on Swine Nutrition
TI  - Sustainable agriculture research and education in the field: : a proceedings
U1  - 338.162 
PY  - 1991///
CY  - Washington
PB  - National Academy Press
KW  - Agricultura sustentable
KW  - Agricultura
KW  - Investigacion
KW  - E.U.A
KW  - Educación agrícola
ER  -