Gupta, P. P., & Malik, G. S. (1993). Mathematical Methods (3rd ed.). Pragati Prakashan.
Cita Chicago (17th ed.)Gupta, P. P., i G. S. Malik. Mathematical Methods. 3rd ed. Meerut: Pragati Prakashan, 1993.
Cita MLA (9th ed.)Gupta, P. P., i G. S. Malik. Mathematical Methods. 3rd ed. Pragati Prakashan, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.