Practical physics Chattopadhyay, D. creator Rakshit, P. C. text Kolkata New central Book agency c1987 monographic xvi, 860 p. : ill. D. Chattopadhyay, P. C. Rakshit Physics - practical Physics QC33 .C52 1987 8173810540 UOEL 000 20141021110110.0