TY  - GEN
AU  - Djumalieva, D 
AU  - Vassilev, Anton 
TI  - Cropping systems in intensive agriculture
SN  - 8185880077
U1  - 631.582 
PY  - 1993///
CY  - New Delhi
PB  - M D publications
KW  - Agriculture and related technologies
KW  - Crop rotation
KW  - Special methods of cultivation
KW  - Cultivation and harvesting
KW  - Specific techniques
ER  -