Management of semi-arid ecosystems
Walker, B H, Ed.
Management of semi-arid ecosystems - - Elsevier Scientific Publishing Co., Amsterdam 1979 - - Developments in agricultural and managed-Forest ecology-7 .
Environmental management
577.17 WAL-M
Management of semi-arid ecosystems - - Elsevier Scientific Publishing Co., Amsterdam 1979 - - Developments in agricultural and managed-Forest ecology-7 .
Environmental management
577.17 WAL-M