TY  - BOOK
AU  - Singh, R.P
AU  - Parr, J.F 
TI  - Advances in soil science dryland agriculture strategies for sustainability 
SN  - 0387972048
U1  - 631.586 SIN 
PY  - 1990///
CY  - New york 
PB  - Spriger-Verlag 
KW  - Dry Farming
ER  -