Ravi Shah and V. L. Manekar and R. A. Christian and N. J. Mistry, Estimation of Reconnaissance Drought Index (RDI) for Bhavnagar District, Gujarat, India. journal = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2013, vol. 79(7). 507 - 510 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/16568.