TY  - GEN
AU  - Pearson, C. J.
AU  - Norman, D. W. 
AU  - Dixon, J.
TI  - Sustainable dryland cropping in relation to soil productivity
SN  - 8120412230
U1  - 631.4 
PY  - 1995///
CY  - New Delhi
PB  - Oxford & IBH 
KW  - MANAGEMENT OF SOIL,WEEDS,LIVESTOCK
KW  - SOIL SCIENCES
KW  - SOIL BIOLOGY
KW  - AGRICULTURE
KW  - WEED ECOLOGY
ER  -