TY  - BK
AU  - Ortiz Canavate,J.
AU  - Hernanz,J.L.
TI  - Tilling systems
SN  -  84-7114-718-1
U1  - 1998-036891 
PY  - 1998///
KW  - Agricultural machinery and equipment
KW  - Cultivation
KW  - AGROVOC
KW  - Equipment
KW  - Soil chemistry and physics
KW  - Soil cultivation
N1  - 6 tablas, 13 graf.; 21 ref
T2  - Jimenez Diaz, R.M.; Lamo-de-Espinosa,-J. (Comps.). [Sustainable agriculture]. Agricultura sostenible. Madrid (Espana). Mundi-Prensa. 1998. xxii, 616 p
ER  -