Brij Lal; Subrahmanyam N., . (1989). Mechanics and relativity. : S.Chand.
Brij Lal; Subrahmanyam N, . 1989. Mechanics and relativity. : S.Chand.
Brij Lal; Subrahmanyam N, . Mechanics and relativity. : S.Chand. 1989.