TY  - BOOK
AU  - Hanson, Angus Alexander.
TI  - Practical handbook of agricultural science
U1  - 630 
PY  - 1990///
CY  - Boca Raton, Fla.
PB  - CRC Press
KW  - Agricultura
KW  - E.U.A
KW  - Manuales
N1  - 63-75
ER  -