TY - BOOK TI - Extension and Techniques for Land and Water Management for Crop Production in the Semi-Arid Environment: (with applications to the low resource level communal farmer):Workshop Documentation Contributions training Manual SADC-Land and Water Management Research Programme, Training Workshop held at the University of Zimbabwe Harare,Zimbabwe February 22-26 1993 AV - SB110 .E97 1993 PY - 1993/// CY - Gaborone,Botswana. PB - SADC-l& WMRP KW - Research KW - Water Management KW - SADC-Land ER -