TY  - BOOK
AU  - Walker T S
AU  -  Subbarao K V
TI  - Risk and the choice of cropping systems :  Hybrid s   
T2  - Economics Program Progress Report. 43
U1  - X9(M71).235X.N8, M2 
PY  - 1982///
CY  - Patancheru
PB  - International Crops Research Institute for I the Semi-Arid Tropics  
KW  - Cotton Industry
ER  -