00307nam a2200109Ia 4500008004000000082001700040100001800057245003700075260006700112300000700179650001100186210210b1974   xxu||||| |||| 00| 0 eng d  a633.189 MUEF  aMULLER (K E).  aField problems of tropical rice.  aPhilippines.bThe International rice Research Institute,c1974  a94  aRice