00266nam a2200097Ia 450000500170000000800410001708200140005810000250007224500240009726000470012120260329235439.0260329s9999||||xx |||||||||||||| ||und||  a925 D313V  aDevsare, Harikrishna 0aVigyan Ke Ratan (H)  aNew DelhibSasta Sahitya Mandal Pub.c2017