Brij Lal; Subrahmanyam N., . (1968). Heat and thermodynamics. New Delhi: Niraj Prakashan.
Brij Lal; Subrahmanyam N, . 1968. Heat and thermodynamics. New Delhi: Niraj Prakashan.
Brij Lal; Subrahmanyam N, . Heat and thermodynamics. New Delhi: Niraj Prakashan. 1968.