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Drought prone areas in India : aspects of identification and development strategy
Singh, Tapeshwar, (1978)
Consideration of the economic and social situation in the Sudano-Sahelian region stricken by drought and measures to be taken for the benefit of that region : report of the Secretary-General
(1974)
O Ceará no começo do seculo XX
Sousa Brasil, Thomas Pompêo, (1909)