TY - BOOK AU - Middleton, Nick, ed. AU - Thomas, David, ed. TI - World atlas of desertification SN - 0340691662 U1 - R 551.4150223 21st ed. PY - 1997/// CY - London PB - Arnold KW - Atlases KW - Climatology-Atlases KW - Desertification-Atlases KW - Deserts-Atlases N1 - 171-82 includes index ER -