TY - BOOK AU - Chishodm Anthony AU - Dumsday Robert TI - Land degradation: Problems and policies T2 - Centre for resource and environmental studies U1 - U673.8.N8, M7/TD PY - 1987/// CY - London PB - Cambridge University Press KW - Geography N1 - Appendix P 341-68; Bibliography P 369-92 ER -