Subrahmanyam, N. Principles of physics / N. Subrahmanyam and Brij Lal. - New Delhi : S. Chand & Company, c1969. - xxxii, 1112 p. ; 22 cm. ISBN: 812190885X Subjects--Index Terms: Laws of MOtion. Gravity and Gravitation. Transmission of Heat. Dewey Class. No.: 530 / SUB