00329nam a2200121Ia 4500008004100000100004700041245002200088260005100110300000900161650001200170942000800182999001700190190216s9999||||xx |||||||||||||| ||und||  a"Ramdas Vs,Mohanram Hy,Mitra Jetc........" 0aBiology-Class Xii  bNational Council Of Educational Researchc1989  a761p  aBiology  cREF  c36107d36107