Kepner, W. G., Rubio, J. L., Mouat, D. A., & Pedrazzini, F. (2006). Desertification in the Mediterranean Region. A Security Issue. Springer Netherlands. https://doi.org/10.1007/1-4020-3760-0

Kepner, William G., Jose L. Rubio, David A. Mouat, and Fausto Pedrazzini. Desertification in the Mediterranean Region. A Security Issue. Dordrecht: Springer Netherlands, 2006. https://doi.org/10.1007/1-4020-3760-0.

Kepner, William G., et al. Desertification in the Mediterranean Region. A Security Issue. Springer Netherlands, 2006. https://doi.org/10.1007/1-4020-3760-0.