Kerr, J. M., Marothia, D. K., Singh, K., Ramasamy, C., & Bentley, W. R. (1997). Natural resource economics: Theory and application in India. Oxford & IBH Pub. Co..

Kerr, J. M., Dinesh K. Marothia, Katar Singh, C. Ramasamy, and William R. Bentley. Natural Resource Economics: Theory and Application in India. New Delhi: Oxford & IBH Pub. Co., 1997.

Kerr, J. M., et al. Natural Resource Economics: Theory and Application in India. Oxford & IBH Pub. Co., 1997.