APA (7th ed.) Citation

Siva Kumar, M. V. K. (1991). Drought spells and drought frequencies in West Africa=b Dure et frquence des priodes s ches en Africa de l'Ouest. International Crops Research Institute for the Semi-arid Tropics.

Chicago Style (17th ed.) Citation

Siva Kumar, M. V. K. Drought Spells and Drought Frequencies in West Africa=b Dure Et Frquence Des Priodes S Ches En Africa De L'Ouest. Patancheru, Andhra Pradesh, India: International Crops Research Institute for the Semi-arid Tropics, 1991.

MLA (9th ed.) Citation

Siva Kumar, M. V. K. Drought Spells and Drought Frequencies in West Africa=b Dure Et Frquence Des Priodes S Ches En Africa De L'Ouest. International Crops Research Institute for the Semi-arid Tropics, 1991.