00323nam a2200145Ia 4500 230118s9999||||xx |||||||||||||| ||und|| 539 RAJ/M j.b rajam nsubrahmanyam modern physics newdelhi s. chand and company ltd 1980 7363 7363 0 0 0 0 CPL CPL 2023-02-07 0 539 328 2023-02-07 00:00:00 2023-02-07 BK