00446nam a2200133Ia 4500020001500000040000800015082002600023100002200049245006600071260007800137300003400215650002100249710004200270  a9711041065  cTVA  a631 INT 1984 A055 Or.1 aHoque, M. Zahidul10aCropping systems in Asia :bon-farm research and management /  aLos Ba©łos, Philippines :bInternational Rice Research Institute,c1984  a196 p. :bill., maps ;c23 cm 0aCropping systems20aInternational Rice Research Institute