Climate prediction and agriculture : advances and challenges / ed. M. V. Sivakumar, 2007 r=on-line. - Текст : электронный.
Climate and land degradation / ed. M. V. Sivakumar, 2007 r=on-line. - Текст : электронный.
Sivakumar M.V. Managing weather and climate risks in agriculture / M. V. Sivakumar, R. P. Motha, 2007 r=on-line. - Текст : электронный.