TY  - BOOK
AU  - International Crops Research Institute for the Semi Arid Tropics,
TI  - Drought Spells & Drought Frequencies in West Africa
SN  - 9290661828
U1  - 551.6477305 
PY  - 1991///
CY  - Patancheru
PB  - International Crops Research Institute for the Semi Arid Tropics
KW  - Geology, hydrology & meteorology
ER  -