TY - BOOK AU - Kassam,A.H. TI - Conservation agriculture for africa: building resilient farming systems in a changing climate SN - 9781780648415 AV - S472.A1 C51 PY - 2016/// CY - Boston, MA PB - CABI KW - KW - Sustainable agriculture KW - Africa N1 - Includes bibliographical references and index ER -