Gupta, K. P. (1993). Classical Mechanics. Pragati Prakashan.
Cita Chicago (17th ed.)Gupta, K. P. Classical Mechanics. Meerut: Pragati Prakashan, 1993.
Cita MLA (9th ed.)Gupta, K. P. Classical Mechanics. Pragati Prakashan, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.