Gupta, P. K., & Goyal, J. K. (1996). Mathematical Methods (4th ed.). Modern Book Centre.
Cita Chicago (17th ed.)Gupta, P. K., i J. K. Goyal. Mathematical Methods. 4th ed. Meerut: Modern Book Centre, 1996.
Cita MLA (9th ed.)Gupta, P. K., i J. K. Goyal. Mathematical Methods. 4th ed. Modern Book Centre, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.