Rice farming systems new directions proceedings of an International Symposium, 31 Jan. - 3 Feb. 1987, Rice Research and Training Center, Sakha, Egypt. - International Symposium on Rice Farming Systems : New Directions (1987 : Sakha, Egypt); International Rice Research Institute (Manila IRRI, 1989)
Keywords: Rice farming systems -- Congresses. -- Egypt; Agricultural systems -- Congresses. -- Egypt